enm test data added

1065 files changed, 119261 insertions, 0 deletions

diff --git a/test/data/enm/bundles.json b/test/data/enm/bundles.json
new file mode 100644
index 0000000..54958d5
--- /dev/null
+++ b/test/data/enm/bundles.json
@@ -0,0 +1,263 @@
+[
+  {
+    "URI": "https://data.enanomapper.net/bundle/1",
+    "type": "Bundle",
+    "title": "NanoWiki",
+    "stars": 5,
+    "source": "http://dx.doi.org/10.6084/m9.figshare.1330208",
+    "rightsHolder": "http://orcid.org/0000-0001-7542-0286",
+    "maintainer": "http://orcid.org/0000-0001-7542-0286",
+    "seeAlso": "NanoWiki",
+    "rights": {
+      "URI": "https://creativecommons.org/publicdomain/zero/1.0/",
+      "type": "rights"
+    },
+    "id": 1,
+    "number": "00000000-0000-0000-0000-000000000001",
+    "version": 2,
+    "owner": "enanomapper",
+    "description": "Nanomaterials, physicochemical characterisations and toxicity data, imported via NanoWiki RDF dump",
+    "created": 1457934254000,
+    "updated": 1457934254000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/1/summary",
+    "compound": "https://data.enanomapper.net/bundle/1/compound",
+    "substance": "https://data.enanomapper.net/bundle/1/substance",
+    "property": "https://data.enanomapper.net/bundle/1/property",
+    "dataset": "https://data.enanomapper.net/bundle/1/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/1/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/1/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/2",
+    "type": "Bundle",
+    "title": "OECD Harmonized Templates import test",
+    "stars": 5,
+    "source": "http://apps.echa.europa.eu/registered/data/dossiers/DISS-b281d1a0-c6d8-5dcf-e044-00144f67d031/AGGR-cd35254a-7b90-4a1f-842d-7700c6a210e9_DISS-b281d1a0-c6d8-5dcf-e044-00144f67d031.html",
+    "rightsHolder": "http://echa.europa.eu/",
+    "maintainer": "www.ideaconsult.net",
+    "seeAlso": "Multi-Walled Carbon Nanotubes (MWCNT), synthetic graphite in tubular shape",
+    "rights": {
+      "URI": "http://echa.europa.eu/web/guest/legal-notice",
+      "type": "rights"
+    },
+    "id": 2,
+    "number": "00000000-0000-0000-0000-000000000002",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "Demonstrate import of a nanomaterial and endpoints data form IUCLID5 *.i5z file  (OECD HT)",
+    "created": 1454739117000,
+    "updated": 1454739117000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/2/summary",
+    "compound": "https://data.enanomapper.net/bundle/2/compound",
+    "substance": "https://data.enanomapper.net/bundle/2/substance",
+    "property": "https://data.enanomapper.net/bundle/2/property",
+    "dataset": "https://data.enanomapper.net/bundle/2/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/2/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/2/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/3",
+    "type": "Bundle",
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles",
+    "stars": 5,
+    "source": "http://pubs.acs.org/doi/abs/10.1021/nn406018q",
+    "rightsHolder": "http://pubs.acs.org/doi/abs/10.1021/nn406018q",
+    "maintainer": "NTUA",
+    "seeAlso": "10.1021/nn406018q",
+    "rights": {
+      "URI": "http://pubs.acs.org/doi/abs/10.1021/nn406018q",
+      "type": "rights"
+    },
+    "id": 3,
+    "number": "00000000-0000-0000-0000-000000000003",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "Demonstrates import, display and search of coated Ag and Au nanoparticles with large number of physicochemical characterisations data and biological responses. \r\nServes as a test case for NanoQSAR (eNanoMapper WP4) modelling activities.",
+    "created": 1454739117000,
+    "updated": 1454739117000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/3/summary",
+    "compound": "https://data.enanomapper.net/bundle/3/compound",
+    "substance": "https://data.enanomapper.net/bundle/3/substance",
+    "property": "https://data.enanomapper.net/bundle/3/property",
+    "dataset": "https://data.enanomapper.net/bundle/3/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/3/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/3/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/4",
+    "type": "Bundle",
+    "title": "In Vitro data from FP7 MARINA project (KI)",
+    "stars": 5,
+    "source": "http://dx.doi.org/10.1371/journal.pone.0127174",
+    "rightsHolder": "http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0127174",
+    "maintainer": "P32 - KI",
+    "seeAlso": "Comprehensive In Vitro Toxicity Testing of a Panel of Representative Oxide Nanomaterials: First Steps towards an Intelligent Testing Strategy",
+    "rights": {
+      "URI": "http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0127174",
+      "type": "rights"
+    },
+    "id": 4,
+    "number": "91cad054-4de8-4dc9-a8e4-20564e7eada7",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "Publicly released data from publication  10.1371/journal.pone.0127174",
+    "created": 1442395776000,
+    "updated": 1442395776000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/4/summary",
+    "compound": "https://data.enanomapper.net/bundle/4/compound",
+    "substance": "https://data.enanomapper.net/bundle/4/substance",
+    "property": "https://data.enanomapper.net/bundle/4/property",
+    "dataset": "https://data.enanomapper.net/bundle/4/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/4/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/4/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/5",
+    "type": "Bundle",
+    "title": "Sigma-Aldrich Products",
+    "stars": 5,
+    "source": "http://dx.doi.org/10.6084/m9.figshare.1330208",
+    "rightsHolder": "http://orcid.org/0000-0001-7542-0286",
+    "maintainer": "http://orcid.org/0000-0001-7542-0286",
+    "seeAlso": "NanoWiki",
+    "rights": {
+      "URI": "https://creativecommons.org/publicdomain/zero/1.0/",
+      "type": "rights"
+    },
+    "id": 5,
+    "number": "13e147c3-ccb5-11e5-946b-80ee7350bfa7",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "List of nanomaterials that you can buy with Sigma-Aldrich.",
+    "created": 1454751800000,
+    "updated": 1454751800000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/5/summary",
+    "compound": "https://data.enanomapper.net/bundle/5/compound",
+    "substance": "https://data.enanomapper.net/bundle/5/substance",
+    "property": "https://data.enanomapper.net/bundle/5/property",
+    "dataset": "https://data.enanomapper.net/bundle/5/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/5/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/5/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/6",
+    "type": "Bundle",
+    "title": "JRC Representative Nanomaterials",
+    "stars": 5,
+    "source": "http://dx.doi.org/10.6084/m9.figshare.1330208",
+    "rightsHolder": "http://orcid.org/0000-0001-7542-0286",
+    "maintainer": "http://orcid.org/0000-0001-7542-0286",
+    "seeAlso": "NanoWiki",
+    "rights": {
+      "URI": "https://creativecommons.org/publicdomain/zero/1.0/",
+      "type": "rights"
+    },
+    "id": 6,
+    "number": "646ab3a4-ccb5-11e5-946b-80ee7350bfa7",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "Repository of representative nanomaterials with the purpose that many laboratories can measure physicochemical and biological properties on them.",
+    "created": 1454751800000,
+    "updated": 1454751800000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/6/summary",
+    "compound": "https://data.enanomapper.net/bundle/6/compound",
+    "substance": "https://data.enanomapper.net/bundle/6/substance",
+    "property": "https://data.enanomapper.net/bundle/6/property",
+    "dataset": "https://data.enanomapper.net/bundle/6/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/6/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/6/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/7",
+    "type": "Bundle",
+    "title": "Crystallography Open Database",
+    "stars": 5,
+    "source": "http://dx.doi.org/10.6084/m9.figshare.1330208",
+    "rightsHolder": "http://orcid.org/0000-0001-7542-0286",
+    "maintainer": "http://orcid.org/0000-0001-7542-0286",
+    "seeAlso": "NanoWiki",
+    "rights": {
+      "URI": "https://creativecommons.org/publicdomain/zero/1.0/",
+      "type": "rights"
+    },
+    "id": 7,
+    "number": "804608b3-ccb5-11e5-946b-80ee7350bfa7",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "List of nanomaterials in the Crystallography Open Database.",
+    "created": 1454750975000,
+    "updated": 1454750975000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/7/summary",
+    "compound": "https://data.enanomapper.net/bundle/7/compound",
+    "substance": "https://data.enanomapper.net/bundle/7/substance",
+    "property": "https://data.enanomapper.net/bundle/7/property",
+    "dataset": "https://data.enanomapper.net/bundle/7/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/7/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/7/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/8",
+    "type": "Bundle",
+    "title": "ArrayExpress",
+    "stars": 5,
+    "source": "http://dx.doi.org/10.6084/m9.figshare.1330208",
+    "rightsHolder": "http://orcid.org/0000-0001-7542-0286",
+    "maintainer": "http://orcid.org/0000-0001-7542-0286",
+    "seeAlso": "NanoWiki",
+    "rights": {
+      "URI": "https://creativecommons.org/publicdomain/zero/1.0/",
+      "type": "rights"
+    },
+    "id": 8,
+    "number": "ee0cdb4c-cce1-11e5-946b-80ee7350bfa7",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "ArrayExpress",
+    "created": 1454750975000,
+    "updated": 1454750975000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/8/summary",
+    "compound": "https://data.enanomapper.net/bundle/8/compound",
+    "substance": "https://data.enanomapper.net/bundle/8/substance",
+    "property": "https://data.enanomapper.net/bundle/8/property",
+    "dataset": "https://data.enanomapper.net/bundle/8/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/8/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/8/version"
+  },
+  {
+    "URI": "https://data.enanomapper.net/bundle/12",
+    "type": "Bundle",
+    "title": "MODENA ",
+    "stars": 5,
+    "source": "http://www.modena-cost.eu/",
+    "rightsHolder": "http://www.modena-cost.eu/",
+    "maintainer": "http://orcid.org/0000-0002-4322-6179",
+    "seeAlso": "MODENA TD1204 COST ACTION",
+    "rights": {
+      "URI": "https://creativecommons.org/publicdomain/zero/1.0/",
+      "type": "rights"
+    },
+    "id": 12,
+    "number": "62b0a66b-cd01-11e5-a67e-80ee7350bfa7",
+    "version": 1,
+    "owner": "enanomapper",
+    "description": "MODENA TD1204 COST ACTION dataset",
+    "created": 1460567053000,
+    "updated": 1460567053000,
+    "status": "published",
+    "summary": "https://data.enanomapper.net/bundle/12/summary",
+    "compound": "https://data.enanomapper.net/bundle/12/compound",
+    "substance": "https://data.enanomapper.net/bundle/12/substance",
+    "property": "https://data.enanomapper.net/bundle/12/property",
+    "dataset": "https://data.enanomapper.net/bundle/12/dataset",
+    "matrix": "https://data.enanomapper.net/bundle/12/matrix",
+    "bundleversions": "https://data.enanomapper.net/bundle/12/version"
+  }
+]
diff --git a/test/data/enm/enm-dump.rb b/test/data/enm/enm-dump.rb
new file mode 100644
index 0000000..88667fc
--- /dev/null
+++ b/test/data/enm/enm-dump.rb
@@ -0,0 +1,17 @@
+require 'json'
+
+#get list of bundle URIs
+`wget 'https://data.enanomapper.net/bundle?media=application%2Fjson' -O bundles.json`
+json = JSON.parse File.read('./bundles.json')
+json["dataset"].each do |dataset|
+  uri = dataset["URI"]
+  id = uri.split("/").last
+  #`wget --header='accept:application/json' '#{uri}' -O 'bundle#{id}'`
+  `wget --header='accept:application/ld+json' '#{uri}/substance' -O 'study#{id}.json'`
+  #`wget --header='accept:application/json' '#{dataset["summary"]}' -O 'summary#{id}.json'`
+  #`wget --header='accept:application/json' '#{dataset["compound"]}' -O 'compound#{id}.json'`
+  #`wget --header='accept:application/json' '#{dataset["substance"]}' -O 'substance#{id}.json'`
+  #`wget --header='accept:application/json' '#{dataset["property"]}' -O 'property#{id}.json'`
+  #`wget --header='accept:application/json' '#{dataset["dataset"]}' -O 'dataset#{id}.json'`
+  #`wget --header='accept:application/json' '#{dataset["matrix"]}' -O 'matrix#{id}.json'`
+end
diff --git a/test/data/enm/enm-import.rb b/test/data/enm/enm-import.rb
new file mode 100644
index 0000000..37bc22b
--- /dev/null
+++ b/test/data/enm/enm-import.rb
@@ -0,0 +1,47 @@
+require_relative '../lib/lazar.rb'
+include OpenTox
+$mongo.database.drop
+$gridfs = $mongo.database.fs
+
+#get list of bundle URIs
+bundles = JSON.parse(RestClientWrapper.get('https://data.enanomapper.net/bundle?media=application%2Fjson'))["dataset"]
+bundles.each do |bundle|
+  uri = bundle["URI"]
+  nanoparticles = JSON.parse(RestClientWrapper.get(bundle["dataset"]+"?media=application%2Fjson"))["dataEntry"]
+  features = JSON.parse(RestClientWrapper.get(bundle["property"]+"?media=application%2Fjson"))["feature"]
+  nanoparticles.each do |np|
+      nanoparticle = Nanoparticle.find_or_create_by(
+        :name => np["values"]["https://data.enanomapper.net/identifier/name"],
+        :source => np["compound"]["URI"],
+      )
+      nanoparticle.bundles << uri
+      nanoparticle.bundles.uniq!
+      np["composition"].each do |comp|
+        case comp["relation"]
+        when "HAS_CORE"
+          nanoparticle.core = comp["component"]["compound"]["URI"]
+        when "HAS_COATING"
+          nanoparticle.coating << comp["component"]["compound"]["URI"]
+        end
+      end if np["composition"]
+      np["values"].each do |u,v|
+        if u.match(/property/)
+          name, unit, source = nil
+          features.each do |uri,feat|
+            if u.match(/#{uri}/)
+              name = feat["title"]
+              unit = feat["units"]
+              source = uri
+            end
+          end
+          feature = Feature.find_or_create_by(
+            :name => name,
+            :unit => unit,
+            :source => source
+          )
+        end
+        v.each{|value| nanoparticle.parse_ambit_value feature, value} if v.is_a? Array
+      end
+      nanoparticle.save!
+  end
+end
diff --git a/test/data/enm/nanoparticle-FCSV-0542c513-7015-3169-a1c1-e00f811a7ba0.json b/test/data/enm/nanoparticle-FCSV-0542c513-7015-3169-a1c1-e00f811a7ba0.json
new file mode 100644
index 0000000..ef2cb79
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-0542c513-7015-3169-a1c1-e00f811a7ba0.json
@@ -0,0 +1,299 @@
+{
+  "compound": {
+    "URI": "https://data.enanomapper.net/substance/FCSV-0542c513-7015-3169-a1c1-e00f811a7ba0",
+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "G30.NT@F127",
+    "https://data.enanomapper.net/identifier/tradename": "G30.NT@F127",
+    "https://data.enanomapper.net/identifier/uuid": "FCSV-0542c513-7015-3169-a1c1-e00f811a7ba0",
+    "https://data.enanomapper.net/owner/name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "https://data.enanomapper.net/property/P-CHEM/CRYSTALLITE_AND_GRAIN_SIZE_SECTION/Polydispersity+index/3502F924548105D27B60D6E55373AAE4EB8802DE/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": 0.116
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/CRYSTALLITE_AND_GRAIN_SIZE_SECTION/Polydispersity+index/9D35A889AFDA68DE234F2EE9A61A06CC91BF7437/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": 0.178
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/Core+size/1918C28E0E397464AA8E0C414DA2C75DAE2BA64B/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": 31.6
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/Density/15665B7D041A4D573178F909094A9D067E79EE81/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loValue": 19.1
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/MW/48C41DC3AC6E2D7E62C400216AA4E17DFC9AF68D/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loValue": 197
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/Mol%2FNP/F9215F417F7AF3E303D6AF553AD6D74973E04971/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loValue": 0
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/SA%2FNP/2E757CE81FE8CBFBE30226CE6632BCAE1374D648/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loValue": 0
+      }
+    ],
+    "https://data.enanomapper.net/property/TOX/UNKNOWN_TOXICITY_SECTION/Total+protein+%28BCA+assay%29/ABCD8CB85D6B72FE1971A0CB4335FEA90B49E9D3/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": 0.476
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/ZETA_POTENTIAL_SECTION/ZETA+POTENTIAL/7F8B3FB82019B1CCF8A8C3FD2B5A2DACBDDDB832/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": -4.96
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/ZETA_POTENTIAL_SECTION/ZETA+POTENTIAL/AD2880DCCB16852FB869B7E10223708801EB1B02/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": -3.92
+      }
+    ],
+    "https://data.enanomapper.net/property/TOX/UNKNOWN_TOXICITY_SECTION/Net+cell+association/62B12F0B14D8BE218BBF59144FC69360A0A8AAB4/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": 0.006
+      }
+    ],
+    "https://data.enanomapper.net/property/TOX/UNKNOWN_TOXICITY_SECTION/Log2+transformed/94D664CFE4929A0F400A5AD8CA733B52E049A688/E/3ed642f9-1b42-387a-9966-dea5b91e5f8a": [
+      {
+        "loQualifier": "mean",
+        "loValue": -7.459
+      }
+    ],
+    "https://data.enanomapper.net/property/P-CHEM/SURFACE_CHEMISTRY_SECTION/ATOMIC+COMPOSITION/0E7B80855A61F7707CE4C63130D36545AAB3BDB3/E/b5a7adde-1af5-387d-bfd7-97b6245c2a39": [
+      {
+        "loValue": "[Au]"
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diff --git a/test/data/enm/nanoparticle-FCSV-0588dd9b-6227-307f-9e6a-6b07d4717e8c.json b/test/data/enm/nanoparticle-FCSV-0588dd9b-6227-307f-9e6a-6b07d4717e8c.json
new file mode 100644
index 0000000..f275b8b
--- /dev/null
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diff --git a/test/data/enm/nanoparticle-FCSV-07ecc16e-528e-3904-bb96-0812dff8ea65.json b/test/data/enm/nanoparticle-FCSV-07ecc16e-528e-3904-bb96-0812dff8ea65.json
new file mode 100644
index 0000000..31a09e3
--- /dev/null
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diff --git a/test/data/enm/nanoparticle-FCSV-0d5c0fc7-de56-3507-b651-1c91bf030465.json b/test/data/enm/nanoparticle-FCSV-0d5c0fc7-de56-3507-b651-1c91bf030465.json
new file mode 100644
index 0000000..c91e3ca
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diff --git a/test/data/enm/nanoparticle-FCSV-0e958d54-f957-37d2-91d1-ee8d9961548e.json b/test/data/enm/nanoparticle-FCSV-0e958d54-f957-37d2-91d1-ee8d9961548e.json
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diff --git a/test/data/enm/nanoparticle-FCSV-0fe5f223-9c02-363c-a23c-70f1f36ffbec.json b/test/data/enm/nanoparticle-FCSV-0fe5f223-9c02-363c-a23c-70f1f36ffbec.json
new file mode 100644
index 0000000..aabb085
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diff --git a/test/data/enm/nanoparticle-FCSV-1842b3a2-413c-327c-a07a-9905269bafb5.json b/test/data/enm/nanoparticle-FCSV-1842b3a2-413c-327c-a07a-9905269bafb5.json
new file mode 100644
index 0000000..ec5da1c
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-1842b3a2-413c-327c-a07a-9905269bafb5.json
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diff --git a/test/data/enm/nanoparticle-FCSV-206b1a13-e02a-38a0-88ec-d5a8bfdabc55.json b/test/data/enm/nanoparticle-FCSV-206b1a13-e02a-38a0-88ec-d5a8bfdabc55.json
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diff --git a/test/data/enm/nanoparticle-FCSV-2b9a077f-bef3-3ffd-a83a-77dd85db129a.json b/test/data/enm/nanoparticle-FCSV-2b9a077f-bef3-3ffd-a83a-77dd85db129a.json
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diff --git a/test/data/enm/nanoparticle-FCSV-2de5071e-596b-3507-84fc-f9ba470cbcbf.json b/test/data/enm/nanoparticle-FCSV-2de5071e-596b-3507-84fc-f9ba470cbcbf.json
new file mode 100644
index 0000000..0573d10
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-2de5071e-596b-3507-84fc-f9ba470cbcbf.json
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diff --git a/test/data/enm/nanoparticle-FCSV-3c5fb4b0-2e4e-3dae-9eb2-1dbfd202cd13.json b/test/data/enm/nanoparticle-FCSV-3c5fb4b0-2e4e-3dae-9eb2-1dbfd202cd13.json
new file mode 100644
index 0000000..d22ac92
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-3c5fb4b0-2e4e-3dae-9eb2-1dbfd202cd13.json
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diff --git a/test/data/enm/nanoparticle-FCSV-4dd1bf89-e885-3128-abe2-9a87fbbd0242.json b/test/data/enm/nanoparticle-FCSV-4dd1bf89-e885-3128-abe2-9a87fbbd0242.json
new file mode 100644
index 0000000..1fadb35
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-4dd1bf89-e885-3128-abe2-9a87fbbd0242.json
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diff --git a/test/data/enm/nanoparticle-FCSV-5b29295c-f2ab-3e5a-bb32-37caac38b002.json b/test/data/enm/nanoparticle-FCSV-5b29295c-f2ab-3e5a-bb32-37caac38b002.json
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diff --git a/test/data/enm/nanoparticle-FCSV-5c14595c-0e23-3f37-aaad-9988eba09196.json b/test/data/enm/nanoparticle-FCSV-5c14595c-0e23-3f37-aaad-9988eba09196.json
new file mode 100644
index 0000000..035bdc7
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-5c14595c-0e23-3f37-aaad-9988eba09196.json
@@ -0,0 +1,247 @@
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diff --git a/test/data/enm/nanoparticle-FCSV-6405ef25-683e-3763-a4e3-f56eb93174e4.json b/test/data/enm/nanoparticle-FCSV-6405ef25-683e-3763-a4e3-f56eb93174e4.json
new file mode 100644
index 0000000..be8a66c
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-6405ef25-683e-3763-a4e3-f56eb93174e4.json
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diff --git a/test/data/enm/nanoparticle-FCSV-6d8b8701-7fca-3936-a45e-66c17012fc75.json b/test/data/enm/nanoparticle-FCSV-6d8b8701-7fca-3936-a45e-66c17012fc75.json
new file mode 100644
index 0000000..c1144e2
--- /dev/null
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diff --git a/test/data/enm/nanoparticle-FCSV-770a2d39-1509-3c93-b28f-1d3e345de450.json b/test/data/enm/nanoparticle-FCSV-770a2d39-1509-3c93-b28f-1d3e345de450.json
new file mode 100644
index 0000000..492ceb9
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-770a2d39-1509-3c93-b28f-1d3e345de450.json
@@ -0,0 +1,247 @@
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diff --git a/test/data/enm/nanoparticle-FCSV-8a45dec8-a551-33cc-a7ac-7750d9f30389.json b/test/data/enm/nanoparticle-FCSV-8a45dec8-a551-33cc-a7ac-7750d9f30389.json
new file mode 100644
index 0000000..cc69836
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-8a45dec8-a551-33cc-a7ac-7750d9f30389.json
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diff --git a/test/data/enm/nanoparticle-FCSV-8dc5c24b-2e89-3833-b94d-920674a956a0.json b/test/data/enm/nanoparticle-FCSV-8dc5c24b-2e89-3833-b94d-920674a956a0.json
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diff --git a/test/data/enm/nanoparticle-FCSV-8e1a76df-a12d-3254-ae6b-28e20153ef59.json b/test/data/enm/nanoparticle-FCSV-8e1a76df-a12d-3254-ae6b-28e20153ef59.json
new file mode 100644
index 0000000..3b84459
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-8e1a76df-a12d-3254-ae6b-28e20153ef59.json
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diff --git a/test/data/enm/nanoparticle-FCSV-8f5e6fcb-23b9-3222-aa6e-4afcbba47715.json b/test/data/enm/nanoparticle-FCSV-8f5e6fcb-23b9-3222-aa6e-4afcbba47715.json
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index 0000000..faa9821
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diff --git a/test/data/enm/nanoparticle-FCSV-9043e884-a5ba-3fa6-a103-dee0c7b1b3dd.json b/test/data/enm/nanoparticle-FCSV-9043e884-a5ba-3fa6-a103-dee0c7b1b3dd.json
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diff --git a/test/data/enm/nanoparticle-FCSV-93c29ebf-e80e-354c-893f-923385c72858.json b/test/data/enm/nanoparticle-FCSV-93c29ebf-e80e-354c-893f-923385c72858.json
new file mode 100644
index 0000000..d070e0c
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-93c29ebf-e80e-354c-893f-923385c72858.json
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diff --git a/test/data/enm/nanoparticle-FCSV-98074b22-064e-3cd7-a732-f5fa3005fa73.json b/test/data/enm/nanoparticle-FCSV-98074b22-064e-3cd7-a732-f5fa3005fa73.json
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diff --git a/test/data/enm/nanoparticle-FCSV-9a56b1e5-2e22-31c4-b979-e8e9fee728c6.json b/test/data/enm/nanoparticle-FCSV-9a56b1e5-2e22-31c4-b979-e8e9fee728c6.json
new file mode 100644
index 0000000..3775688
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-9a56b1e5-2e22-31c4-b979-e8e9fee728c6.json
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diff --git a/test/data/enm/nanoparticle-FCSV-9cc7dd73-d27f-35a0-a3f1-81a18429b76a.json b/test/data/enm/nanoparticle-FCSV-9cc7dd73-d27f-35a0-a3f1-81a18429b76a.json
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diff --git a/test/data/enm/nanoparticle-FCSV-9df9ed76-5f94-3ecb-b661-a56e168a71bf.json b/test/data/enm/nanoparticle-FCSV-9df9ed76-5f94-3ecb-b661-a56e168a71bf.json
new file mode 100644
index 0000000..adb35da
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-9df9ed76-5f94-3ecb-b661-a56e168a71bf.json
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diff --git a/test/data/enm/nanoparticle-FCSV-a4df7f03-50e1-387c-b0b7-2ce62ed03a8c.json b/test/data/enm/nanoparticle-FCSV-a4df7f03-50e1-387c-b0b7-2ce62ed03a8c.json
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diff --git a/test/data/enm/nanoparticle-FCSV-b228fc7b-c407-368a-bc1c-359c7375bb9b.json b/test/data/enm/nanoparticle-FCSV-b228fc7b-c407-368a-bc1c-359c7375bb9b.json
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diff --git a/test/data/enm/nanoparticle-FCSV-b38f2b71-aa2d-3d72-af88-166a60bedee2.json b/test/data/enm/nanoparticle-FCSV-b38f2b71-aa2d-3d72-af88-166a60bedee2.json
new file mode 100644
index 0000000..8c93d7f
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-b38f2b71-aa2d-3d72-af88-166a60bedee2.json
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diff --git a/test/data/enm/nanoparticle-FCSV-bfa499a9-7d1a-34da-bccf-4fc30c65f03d.json b/test/data/enm/nanoparticle-FCSV-bfa499a9-7d1a-34da-bccf-4fc30c65f03d.json
new file mode 100644
index 0000000..058e51b
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-bfa499a9-7d1a-34da-bccf-4fc30c65f03d.json
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diff --git a/test/data/enm/nanoparticle-FCSV-c4fe20ba-de05-36c2-9842-5433ce33bd72.json b/test/data/enm/nanoparticle-FCSV-c4fe20ba-de05-36c2-9842-5433ce33bd72.json
new file mode 100644
index 0000000..7d5024a
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-c4fe20ba-de05-36c2-9842-5433ce33bd72.json
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diff --git a/test/data/enm/nanoparticle-FCSV-cb2f11a0-4af8-318b-8a60-3908f45c2e65.json b/test/data/enm/nanoparticle-FCSV-cb2f11a0-4af8-318b-8a60-3908f45c2e65.json
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diff --git a/test/data/enm/nanoparticle-FCSV-ccd3915e-0b1d-38f4-98b3-02b1a16aace7.json b/test/data/enm/nanoparticle-FCSV-ccd3915e-0b1d-38f4-98b3-02b1a16aace7.json
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diff --git a/test/data/enm/nanoparticle-FCSV-cd7105f2-f630-360e-b8dc-ff42b18bb421.json b/test/data/enm/nanoparticle-FCSV-cd7105f2-f630-360e-b8dc-ff42b18bb421.json
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diff --git a/test/data/enm/nanoparticle-FCSV-ceed5aa6-a62e-3202-9bcf-702a94d34785.json b/test/data/enm/nanoparticle-FCSV-ceed5aa6-a62e-3202-9bcf-702a94d34785.json
new file mode 100644
index 0000000..1e90930
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-ceed5aa6-a62e-3202-9bcf-702a94d34785.json
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diff --git a/test/data/enm/nanoparticle-FCSV-d63a1ea0-3194-3019-a9e0-0960e63b5819.json b/test/data/enm/nanoparticle-FCSV-d63a1ea0-3194-3019-a9e0-0960e63b5819.json
new file mode 100644
index 0000000..7cfc022
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-d63a1ea0-3194-3019-a9e0-0960e63b5819.json
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diff --git a/test/data/enm/nanoparticle-FCSV-de7a4a31-ee94-313e-bfc4-acc11f0b56ec.json b/test/data/enm/nanoparticle-FCSV-de7a4a31-ee94-313e-bfc4-acc11f0b56ec.json
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diff --git a/test/data/enm/nanoparticle-FCSV-ed95bb69-9fa7-3a4a-b4a4-32dd947d4d1a.json b/test/data/enm/nanoparticle-FCSV-ed95bb69-9fa7-3a4a-b4a4-32dd947d4d1a.json
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diff --git a/test/data/enm/nanoparticle-FCSV-edc7f198-f391-328e-aa68-7d3f00b62af5.json b/test/data/enm/nanoparticle-FCSV-edc7f198-f391-328e-aa68-7d3f00b62af5.json
new file mode 100644
index 0000000..8a63e54
--- /dev/null
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diff --git a/test/data/enm/nanoparticle-FCSV-ff7d2c8c-3d2f-316a-b890-6f9e7d88df4c.json b/test/data/enm/nanoparticle-FCSV-ff7d2c8c-3d2f-316a-b890-6f9e7d88df4c.json
new file mode 100644
index 0000000..242ca45
--- /dev/null
+++ b/test/data/enm/nanoparticle-FCSV-ff7d2c8c-3d2f-316a-b890-6f9e7d88df4c.json
@@ -0,0 +1,247 @@
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diff --git a/test/data/enm/nanoparticle-IUC5-5f313d1f-4129-499c-abbe-ac18642e2471.json b/test/data/enm/nanoparticle-IUC5-5f313d1f-4129-499c-abbe-ac18642e2471.json
new file mode 100644
index 0000000..2349ba1
--- /dev/null
+++ b/test/data/enm/nanoparticle-IUC5-5f313d1f-4129-499c-abbe-ac18642e2471.json
@@ -0,0 +1,101 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-002f5129-d46a-39c7-8f26-5626aec2174e.json b/test/data/enm/nanoparticle-NWKI-002f5129-d46a-39c7-8f26-5626aec2174e.json
new file mode 100644
index 0000000..06e8738
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-002f5129-d46a-39c7-8f26-5626aec2174e.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-00e60625-914f-38d4-9765-c8497e9be3f6.json b/test/data/enm/nanoparticle-NWKI-00e60625-914f-38d4-9765-c8497e9be3f6.json
new file mode 100644
index 0000000..a2f3577
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-00e60625-914f-38d4-9765-c8497e9be3f6.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-02981dd4-b7d0-34c8-a0ab-dd19a5a40865.json b/test/data/enm/nanoparticle-NWKI-02981dd4-b7d0-34c8-a0ab-dd19a5a40865.json
new file mode 100644
index 0000000..4c645f2
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diff --git a/test/data/enm/nanoparticle-NWKI-034e18ec-3dd3-3806-86d6-2580247e1c14.json b/test/data/enm/nanoparticle-NWKI-034e18ec-3dd3-3806-86d6-2580247e1c14.json
new file mode 100644
index 0000000..29f3876
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+++ b/test/data/enm/nanoparticle-NWKI-034e18ec-3dd3-3806-86d6-2580247e1c14.json
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diff --git a/test/data/enm/nanoparticle-NWKI-0455b6e1-5203-37bb-a98b-20460acceda1.json b/test/data/enm/nanoparticle-NWKI-0455b6e1-5203-37bb-a98b-20460acceda1.json
new file mode 100644
index 0000000..fe73a8e
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diff --git a/test/data/enm/nanoparticle-NWKI-04887adf-9687-3699-8054-e7e3f695e6db.json b/test/data/enm/nanoparticle-NWKI-04887adf-9687-3699-8054-e7e3f695e6db.json
new file mode 100644
index 0000000..de32a2e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-04887adf-9687-3699-8054-e7e3f695e6db.json
@@ -0,0 +1,86 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-0494174f-9fc2-3296-8ffb-4fadaceb0348.json b/test/data/enm/nanoparticle-NWKI-0494174f-9fc2-3296-8ffb-4fadaceb0348.json
new file mode 100644
index 0000000..cf9523c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0494174f-9fc2-3296-8ffb-4fadaceb0348.json
@@ -0,0 +1,93 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-04962f10-34c8-3118-953e-d40d7244209c.json b/test/data/enm/nanoparticle-NWKI-04962f10-34c8-3118-953e-d40d7244209c.json
new file mode 100644
index 0000000..7a21397
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-04962f10-34c8-3118-953e-d40d7244209c.json
@@ -0,0 +1,85 @@
+{
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-04d6ccd0-30ad-3ffc-9f06-8b13709d3a62.json b/test/data/enm/nanoparticle-NWKI-04d6ccd0-30ad-3ffc-9f06-8b13709d3a62.json
new file mode 100644
index 0000000..cc1eec5
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+++ b/test/data/enm/nanoparticle-NWKI-04d6ccd0-30ad-3ffc-9f06-8b13709d3a62.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-050d8278-eca3-32fa-8509-9a6b5db284a4.json b/test/data/enm/nanoparticle-NWKI-050d8278-eca3-32fa-8509-9a6b5db284a4.json
new file mode 100644
index 0000000..557d3cd
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-050d8278-eca3-32fa-8509-9a6b5db284a4.json
@@ -0,0 +1,79 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-05ce8604-4efc-376b-a88f-338a90465243.json b/test/data/enm/nanoparticle-NWKI-05ce8604-4efc-376b-a88f-338a90465243.json
new file mode 100644
index 0000000..cfd7454
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-05ce8604-4efc-376b-a88f-338a90465243.json
@@ -0,0 +1,79 @@
+{
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+  "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-067e7c71-b439-3945-bc95-46b28278132d.json b/test/data/enm/nanoparticle-NWKI-067e7c71-b439-3945-bc95-46b28278132d.json
new file mode 100644
index 0000000..a634cd1
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-067e7c71-b439-3945-bc95-46b28278132d.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-072b1631-f6f1-3f47-a4dc-723aa4eb0700.json b/test/data/enm/nanoparticle-NWKI-072b1631-f6f1-3f47-a4dc-723aa4eb0700.json
new file mode 100644
index 0000000..877b9f0
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-072b1631-f6f1-3f47-a4dc-723aa4eb0700.json
@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-0866f605-4cfb-32a2-a704-2cf2a8d3d9a6.json b/test/data/enm/nanoparticle-NWKI-0866f605-4cfb-32a2-a704-2cf2a8d3d9a6.json
new file mode 100644
index 0000000..2d06b95
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0866f605-4cfb-32a2-a704-2cf2a8d3d9a6.json
@@ -0,0 +1,95 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-08b685e5-70fa-39b5-87ad-092df4a60568.json b/test/data/enm/nanoparticle-NWKI-08b685e5-70fa-39b5-87ad-092df4a60568.json
new file mode 100644
index 0000000..b1e9105
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-08b685e5-70fa-39b5-87ad-092df4a60568.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-09e3ff87-f9a0-34dc-955e-e8b8474fb12b.json b/test/data/enm/nanoparticle-NWKI-09e3ff87-f9a0-34dc-955e-e8b8474fb12b.json
new file mode 100644
index 0000000..c74f261
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-09e3ff87-f9a0-34dc-955e-e8b8474fb12b.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-0a32aa6b-e0cc-3fa6-9989-8247e431274d.json b/test/data/enm/nanoparticle-NWKI-0a32aa6b-e0cc-3fa6-9989-8247e431274d.json
new file mode 100644
index 0000000..ea78030
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0a32aa6b-e0cc-3fa6-9989-8247e431274d.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-0a6e319e-71fc-37f7-b88d-fbda2e07ccc1.json b/test/data/enm/nanoparticle-NWKI-0a6e319e-71fc-37f7-b88d-fbda2e07ccc1.json
new file mode 100644
index 0000000..9d8533a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0a6e319e-71fc-37f7-b88d-fbda2e07ccc1.json
@@ -0,0 +1,118 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-0b16e14c-47ab-3075-afc4-0713d06aa54c.json b/test/data/enm/nanoparticle-NWKI-0b16e14c-47ab-3075-afc4-0713d06aa54c.json
new file mode 100644
index 0000000..fb8856c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0b16e14c-47ab-3075-afc4-0713d06aa54c.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-0b663f5f-1386-3cc5-ba6b-9ff2bb39d4ff.json b/test/data/enm/nanoparticle-NWKI-0b663f5f-1386-3cc5-ba6b-9ff2bb39d4ff.json
new file mode 100644
index 0000000..5ff086a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0b663f5f-1386-3cc5-ba6b-9ff2bb39d4ff.json
@@ -0,0 +1,78 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-0bb16a46-44a8-353e-ba07-b5835e323537.json b/test/data/enm/nanoparticle-NWKI-0bb16a46-44a8-353e-ba07-b5835e323537.json
new file mode 100644
index 0000000..3b8a785
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+++ b/test/data/enm/nanoparticle-NWKI-0bb16a46-44a8-353e-ba07-b5835e323537.json
@@ -0,0 +1,82 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-0c262415-61c3-3039-9c95-b5026385ff77.json b/test/data/enm/nanoparticle-NWKI-0c262415-61c3-3039-9c95-b5026385ff77.json
new file mode 100644
index 0000000..6219f74
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0c262415-61c3-3039-9c95-b5026385ff77.json
@@ -0,0 +1,26 @@
+{
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+    "name": "",
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+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "NM-211",
+    "https://data.enanomapper.net/identifier/tradename": "JRCNM02101a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-0c262415-61c3-3039-9c95-b5026385ff77",
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diff --git a/test/data/enm/nanoparticle-NWKI-0d6f156a-6ce8-3bac-97e3-b5d62ded7f4e.json b/test/data/enm/nanoparticle-NWKI-0d6f156a-6ce8-3bac-97e3-b5d62ded7f4e.json
new file mode 100644
index 0000000..64a11c5
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+++ b/test/data/enm/nanoparticle-NWKI-0d6f156a-6ce8-3bac-97e3-b5d62ded7f4e.json
@@ -0,0 +1,143 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-0d776d00-aec4-3a75-9eb3-453909fc50ed.json b/test/data/enm/nanoparticle-NWKI-0d776d00-aec4-3a75-9eb3-453909fc50ed.json
new file mode 100644
index 0000000..eace15a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0d776d00-aec4-3a75-9eb3-453909fc50ed.json
@@ -0,0 +1,148 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-0e10a982-4c8b-3f90-af19-8cd443575fc4.json b/test/data/enm/nanoparticle-NWKI-0e10a982-4c8b-3f90-af19-8cd443575fc4.json
new file mode 100644
index 0000000..b3725e1
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0e10a982-4c8b-3f90-af19-8cd443575fc4.json
@@ -0,0 +1,87 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-0fef8d9c-b0c4-3e41-88d0-b85cd538a796.json b/test/data/enm/nanoparticle-NWKI-0fef8d9c-b0c4-3e41-88d0-b85cd538a796.json
new file mode 100644
index 0000000..8331acc
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-0fef8d9c-b0c4-3e41-88d0-b85cd538a796.json
@@ -0,0 +1,94 @@
+{
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+    "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-101f021f-b17b-3225-85c5-3cd2f9e5208d.json b/test/data/enm/nanoparticle-NWKI-101f021f-b17b-3225-85c5-3cd2f9e5208d.json
new file mode 100644
index 0000000..4d9dbac
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-101f021f-b17b-3225-85c5-3cd2f9e5208d.json
@@ -0,0 +1,87 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-1061196b-28a0-3642-b059-10bae176d6d5.json b/test/data/enm/nanoparticle-NWKI-1061196b-28a0-3642-b059-10bae176d6d5.json
new file mode 100644
index 0000000..1df77ba
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+++ b/test/data/enm/nanoparticle-NWKI-1061196b-28a0-3642-b059-10bae176d6d5.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-11ae9232-1521-31d6-9466-c902c43d94fe.json b/test/data/enm/nanoparticle-NWKI-11ae9232-1521-31d6-9466-c902c43d94fe.json
new file mode 100644
index 0000000..a1effa9
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-11ae9232-1521-31d6-9466-c902c43d94fe.json
@@ -0,0 +1,201 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-11bd7878-7fd9-365c-8f01-a452d9c7f4ec.json b/test/data/enm/nanoparticle-NWKI-11bd7878-7fd9-365c-8f01-a452d9c7f4ec.json
new file mode 100644
index 0000000..143e14e
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@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-13acd41a-bbf5-362c-bb6e-54c26f4c5f73.json b/test/data/enm/nanoparticle-NWKI-13acd41a-bbf5-362c-bb6e-54c26f4c5f73.json
new file mode 100644
index 0000000..5664513
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-13acd41a-bbf5-362c-bb6e-54c26f4c5f73.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-13b28611-c05b-325b-9e60-182c49b2a288.json b/test/data/enm/nanoparticle-NWKI-13b28611-c05b-325b-9e60-182c49b2a288.json
new file mode 100644
index 0000000..f4e81d2
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+++ b/test/data/enm/nanoparticle-NWKI-13b28611-c05b-325b-9e60-182c49b2a288.json
@@ -0,0 +1,86 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-144a9226-4b93-36a9-ba2d-6b6c4903357b.json b/test/data/enm/nanoparticle-NWKI-144a9226-4b93-36a9-ba2d-6b6c4903357b.json
new file mode 100644
index 0000000..ab8d87d
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+++ b/test/data/enm/nanoparticle-NWKI-144a9226-4b93-36a9-ba2d-6b6c4903357b.json
@@ -0,0 +1,104 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-155bb96c-2d7e-384d-b55d-45856eeda386.json b/test/data/enm/nanoparticle-NWKI-155bb96c-2d7e-384d-b55d-45856eeda386.json
new file mode 100644
index 0000000..fa8d21e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-155bb96c-2d7e-384d-b55d-45856eeda386.json
@@ -0,0 +1,94 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-156181ce-0023-347b-bc42-f19015d34cf5.json b/test/data/enm/nanoparticle-NWKI-156181ce-0023-347b-bc42-f19015d34cf5.json
new file mode 100644
index 0000000..6171ea2
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-156181ce-0023-347b-bc42-f19015d34cf5.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-163ec18b-7237-34d0-864a-e29fe13083fd.json b/test/data/enm/nanoparticle-NWKI-163ec18b-7237-34d0-864a-e29fe13083fd.json
new file mode 100644
index 0000000..2ffaa99
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-163ec18b-7237-34d0-864a-e29fe13083fd.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-175ce512-1cbd-3a84-b216-dd0f47170dc8.json b/test/data/enm/nanoparticle-NWKI-175ce512-1cbd-3a84-b216-dd0f47170dc8.json
new file mode 100644
index 0000000..b849b69
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+++ b/test/data/enm/nanoparticle-NWKI-175ce512-1cbd-3a84-b216-dd0f47170dc8.json
@@ -0,0 +1,84 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-17c74ed1-b289-3ca1-8477-390a588cb28c.json b/test/data/enm/nanoparticle-NWKI-17c74ed1-b289-3ca1-8477-390a588cb28c.json
new file mode 100644
index 0000000..444b08f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-17c74ed1-b289-3ca1-8477-390a588cb28c.json
@@ -0,0 +1,196 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-18aebb90-aacb-3e15-b516-4d3683e9c27b.json b/test/data/enm/nanoparticle-NWKI-18aebb90-aacb-3e15-b516-4d3683e9c27b.json
new file mode 100644
index 0000000..82b4d7b
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-18aebb90-aacb-3e15-b516-4d3683e9c27b.json
@@ -0,0 +1,91 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-19b5dfef-0d95-3878-9075-2897e8631277.json b/test/data/enm/nanoparticle-NWKI-19b5dfef-0d95-3878-9075-2897e8631277.json
new file mode 100644
index 0000000..966aeed
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-19b5dfef-0d95-3878-9075-2897e8631277.json
@@ -0,0 +1,78 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-1acb7470-88c6-3ec1-8795-55ac6c1113cd.json b/test/data/enm/nanoparticle-NWKI-1acb7470-88c6-3ec1-8795-55ac6c1113cd.json
new file mode 100644
index 0000000..7a861c1
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-1acb7470-88c6-3ec1-8795-55ac6c1113cd.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-1af17b5b-947a-3fd2-a000-cadf542dea4d.json b/test/data/enm/nanoparticle-NWKI-1af17b5b-947a-3fd2-a000-cadf542dea4d.json
new file mode 100644
index 0000000..ebb111e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-1af17b5b-947a-3fd2-a000-cadf542dea4d.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-1b7ce9a9-7e13-30d8-a5c2-f8008ba3c38f.json b/test/data/enm/nanoparticle-NWKI-1b7ce9a9-7e13-30d8-a5c2-f8008ba3c38f.json
new file mode 100644
index 0000000..c2ec126
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-1b7ce9a9-7e13-30d8-a5c2-f8008ba3c38f.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-1c2fcc25-c597-3fab-b383-fb203ef4a69a.json b/test/data/enm/nanoparticle-NWKI-1c2fcc25-c597-3fab-b383-fb203ef4a69a.json
new file mode 100644
index 0000000..f79657e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-1c2fcc25-c597-3fab-b383-fb203ef4a69a.json
@@ -0,0 +1,36 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-1cfacb7a-5cf9-3d42-9fc9-44b578727533.json b/test/data/enm/nanoparticle-NWKI-1cfacb7a-5cf9-3d42-9fc9-44b578727533.json
new file mode 100644
index 0000000..15abcbf
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-1cfacb7a-5cf9-3d42-9fc9-44b578727533.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-1d7c10cd-c2fe-3e95-94ec-2e4ee7099ec5.json b/test/data/enm/nanoparticle-NWKI-1d7c10cd-c2fe-3e95-94ec-2e4ee7099ec5.json
new file mode 100644
index 0000000..8fec9f6
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+++ b/test/data/enm/nanoparticle-NWKI-1d7c10cd-c2fe-3e95-94ec-2e4ee7099ec5.json
@@ -0,0 +1,83 @@
+{
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+    "metric": null,
+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-1e10328e-662c-3c6a-bfb2-8e56ddf9d93c.json b/test/data/enm/nanoparticle-NWKI-1e10328e-662c-3c6a-bfb2-8e56ddf9d93c.json
new file mode 100644
index 0000000..37b0c5b
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+++ b/test/data/enm/nanoparticle-NWKI-1e10328e-662c-3c6a-bfb2-8e56ddf9d93c.json
@@ -0,0 +1,26 @@
+{
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-1e10328e-662c-3c6a-bfb2-8e56ddf9d93c",
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diff --git a/test/data/enm/nanoparticle-NWKI-202b322d-51c9-3d73-a049-1e4019f8ddad.json b/test/data/enm/nanoparticle-NWKI-202b322d-51c9-3d73-a049-1e4019f8ddad.json
new file mode 100644
index 0000000..92267ac
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+++ b/test/data/enm/nanoparticle-NWKI-202b322d-51c9-3d73-a049-1e4019f8ddad.json
@@ -0,0 +1,36 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-205a198f-fcb8-3870-b99c-c6f252783613.json b/test/data/enm/nanoparticle-NWKI-205a198f-fcb8-3870-b99c-c6f252783613.json
new file mode 100644
index 0000000..e12abc1
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+++ b/test/data/enm/nanoparticle-NWKI-205a198f-fcb8-3870-b99c-c6f252783613.json
@@ -0,0 +1,82 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-2076c0ac-9601-33fb-a221-cd3055fd9b42.json b/test/data/enm/nanoparticle-NWKI-2076c0ac-9601-33fb-a221-cd3055fd9b42.json
new file mode 100644
index 0000000..b76a3d4
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-2076c0ac-9601-33fb-a221-cd3055fd9b42.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-21dbebfb-695f-3ff4-b7a4-bead2b52cf13.json b/test/data/enm/nanoparticle-NWKI-21dbebfb-695f-3ff4-b7a4-bead2b52cf13.json
new file mode 100644
index 0000000..1dfe8e1
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@@ -0,0 +1,95 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-227a54df-573f-3515-8366-6bf1f17dd715.json b/test/data/enm/nanoparticle-NWKI-227a54df-573f-3515-8366-6bf1f17dd715.json
new file mode 100644
index 0000000..2a5fc4e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-227a54df-573f-3515-8366-6bf1f17dd715.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-2390517f-b763-3850-b1b4-6e50fee63829.json b/test/data/enm/nanoparticle-NWKI-2390517f-b763-3850-b1b4-6e50fee63829.json
new file mode 100644
index 0000000..5e305d9
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-2390517f-b763-3850-b1b4-6e50fee63829.json
@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-239abeb4-eb11-3e6e-8301-d486e21861aa.json b/test/data/enm/nanoparticle-NWKI-239abeb4-eb11-3e6e-8301-d486e21861aa.json
new file mode 100644
index 0000000..abf01ef
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+++ b/test/data/enm/nanoparticle-NWKI-239abeb4-eb11-3e6e-8301-d486e21861aa.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-245fc9be-5928-354e-8fd1-ae88663923f1.json b/test/data/enm/nanoparticle-NWKI-245fc9be-5928-354e-8fd1-ae88663923f1.json
new file mode 100644
index 0000000..11e52fc
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+++ b/test/data/enm/nanoparticle-NWKI-245fc9be-5928-354e-8fd1-ae88663923f1.json
@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-2581f636-c16f-3680-9b3a-2bf0c8cab0b1.json b/test/data/enm/nanoparticle-NWKI-2581f636-c16f-3680-9b3a-2bf0c8cab0b1.json
new file mode 100644
index 0000000..dca3a54
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diff --git a/test/data/enm/nanoparticle-NWKI-28ab15b2-7538-3654-9fad-ee244bebc5aa.json b/test/data/enm/nanoparticle-NWKI-28ab15b2-7538-3654-9fad-ee244bebc5aa.json
new file mode 100644
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diff --git a/test/data/enm/nanoparticle-NWKI-2a046d54-ea47-31b2-a370-e886e5a0a6bb.json b/test/data/enm/nanoparticle-NWKI-2a046d54-ea47-31b2-a370-e886e5a0a6bb.json
new file mode 100644
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diff --git a/test/data/enm/nanoparticle-NWKI-2af8ed34-029d-3644-8327-23a596cfae0d.json b/test/data/enm/nanoparticle-NWKI-2af8ed34-029d-3644-8327-23a596cfae0d.json
new file mode 100644
index 0000000..729a2d8
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-2af8ed34-029d-3644-8327-23a596cfae0d.json
@@ -0,0 +1,94 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-2bd4c991-b6fb-3eb3-8a0c-794607388b79.json b/test/data/enm/nanoparticle-NWKI-2bd4c991-b6fb-3eb3-8a0c-794607388b79.json
new file mode 100644
index 0000000..a670ad0
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+++ b/test/data/enm/nanoparticle-NWKI-2bd4c991-b6fb-3eb3-8a0c-794607388b79.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-2e056907-7ac9-3b13-a599-ee10f2548d78.json b/test/data/enm/nanoparticle-NWKI-2e056907-7ac9-3b13-a599-ee10f2548d78.json
new file mode 100644
index 0000000..20e58f5
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+++ b/test/data/enm/nanoparticle-NWKI-2e056907-7ac9-3b13-a599-ee10f2548d78.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-3068a619-f77c-3f33-848a-7b4248f6c52c.json b/test/data/enm/nanoparticle-NWKI-3068a619-f77c-3f33-848a-7b4248f6c52c.json
new file mode 100644
index 0000000..0a552ed
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-3068a619-f77c-3f33-848a-7b4248f6c52c.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-30a91305-4a0d-3d7b-a399-6d5b3ee0d641.json b/test/data/enm/nanoparticle-NWKI-30a91305-4a0d-3d7b-a399-6d5b3ee0d641.json
new file mode 100644
index 0000000..b76cb2c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-30a91305-4a0d-3d7b-a399-6d5b3ee0d641.json
@@ -0,0 +1,82 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-31625c61-e49c-33ca-b1ac-c4f455d023ec.json b/test/data/enm/nanoparticle-NWKI-31625c61-e49c-33ca-b1ac-c4f455d023ec.json
new file mode 100644
index 0000000..d34453f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-31625c61-e49c-33ca-b1ac-c4f455d023ec.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-33eda014-7b69-358a-93f0-e0ceef166a52.json b/test/data/enm/nanoparticle-NWKI-33eda014-7b69-358a-93f0-e0ceef166a52.json
new file mode 100644
index 0000000..815725a
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+++ b/test/data/enm/nanoparticle-NWKI-33eda014-7b69-358a-93f0-e0ceef166a52.json
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+{
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diff --git a/test/data/enm/nanoparticle-NWKI-3424add5-867e-3dc5-864d-36c47589024b.json b/test/data/enm/nanoparticle-NWKI-3424add5-867e-3dc5-864d-36c47589024b.json
new file mode 100644
index 0000000..57e0fc4
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+++ b/test/data/enm/nanoparticle-NWKI-3424add5-867e-3dc5-864d-36c47589024b.json
@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3481f716-18fa-39b3-aa54-4acb67877194.json b/test/data/enm/nanoparticle-NWKI-3481f716-18fa-39b3-aa54-4acb67877194.json
new file mode 100644
index 0000000..4ba52f6
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diff --git a/test/data/enm/nanoparticle-NWKI-34a6262c-7f25-3eea-9dd0-bf1e1df40ca9.json b/test/data/enm/nanoparticle-NWKI-34a6262c-7f25-3eea-9dd0-bf1e1df40ca9.json
new file mode 100644
index 0000000..daccc2d
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-34a6262c-7f25-3eea-9dd0-bf1e1df40ca9.json
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diff --git a/test/data/enm/nanoparticle-NWKI-369d200e-2bfc-392d-ae00-ceb41fabd459.json b/test/data/enm/nanoparticle-NWKI-369d200e-2bfc-392d-ae00-ceb41fabd459.json
new file mode 100644
index 0000000..d6e3ffe
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-369d200e-2bfc-392d-ae00-ceb41fabd459.json
@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-37a99dad-2a53-3076-b21f-d078b89fb4fb.json b/test/data/enm/nanoparticle-NWKI-37a99dad-2a53-3076-b21f-d078b89fb4fb.json
new file mode 100644
index 0000000..ef7fb73
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-37a99dad-2a53-3076-b21f-d078b89fb4fb.json
@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-37e2b8ec-0e57-3ed8-9afc-93a3030ee25f.json b/test/data/enm/nanoparticle-NWKI-37e2b8ec-0e57-3ed8-9afc-93a3030ee25f.json
new file mode 100644
index 0000000..a4fd58d
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-37e2b8ec-0e57-3ed8-9afc-93a3030ee25f.json
@@ -0,0 +1,36 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3934179a-66df-3b1b-9930-3e7e9fbdcc62.json b/test/data/enm/nanoparticle-NWKI-3934179a-66df-3b1b-9930-3e7e9fbdcc62.json
new file mode 100644
index 0000000..96e434e
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diff --git a/test/data/enm/nanoparticle-NWKI-395bf212-b710-3385-9c23-715a7055b015.json b/test/data/enm/nanoparticle-NWKI-395bf212-b710-3385-9c23-715a7055b015.json
new file mode 100644
index 0000000..c81bb54
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diff --git a/test/data/enm/nanoparticle-NWKI-3a3b2bcd-8284-37dc-a619-56ffbd7ebd68.json b/test/data/enm/nanoparticle-NWKI-3a3b2bcd-8284-37dc-a619-56ffbd7ebd68.json
new file mode 100644
index 0000000..4ccc555
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@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3b09fdd1-3024-3be3-b1c6-332b44f75f99.json b/test/data/enm/nanoparticle-NWKI-3b09fdd1-3024-3be3-b1c6-332b44f75f99.json
new file mode 100644
index 0000000..1714859
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+++ b/test/data/enm/nanoparticle-NWKI-3b09fdd1-3024-3be3-b1c6-332b44f75f99.json
@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3b7d88ba-32e3-33eb-b99d-b3497644a574.json b/test/data/enm/nanoparticle-NWKI-3b7d88ba-32e3-33eb-b99d-b3497644a574.json
new file mode 100644
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@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3bbccc84-019f-369f-ba70-490fcfde4423.json b/test/data/enm/nanoparticle-NWKI-3bbccc84-019f-369f-ba70-490fcfde4423.json
new file mode 100644
index 0000000..5053e6c
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+++ b/test/data/enm/nanoparticle-NWKI-3bbccc84-019f-369f-ba70-490fcfde4423.json
@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3c8c8bb2-416f-3bff-862a-8433538cd4c5.json b/test/data/enm/nanoparticle-NWKI-3c8c8bb2-416f-3bff-862a-8433538cd4c5.json
new file mode 100644
index 0000000..ac537ad
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-3c8c8bb2-416f-3bff-862a-8433538cd4c5.json
@@ -0,0 +1,94 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-3ccb7313-0905-322a-ac62-09adb667bc0f.json b/test/data/enm/nanoparticle-NWKI-3ccb7313-0905-322a-ac62-09adb667bc0f.json
new file mode 100644
index 0000000..1980140
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-3ccb7313-0905-322a-ac62-09adb667bc0f.json
@@ -0,0 +1,100 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-3ccff23c-b3d6-3614-aef4-4324be42804b.json b/test/data/enm/nanoparticle-NWKI-3ccff23c-b3d6-3614-aef4-4324be42804b.json
new file mode 100644
index 0000000..3a5e618
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+++ b/test/data/enm/nanoparticle-NWKI-3ccff23c-b3d6-3614-aef4-4324be42804b.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-3d8aaa66-97d9-351b-9771-691300d5e97c.json b/test/data/enm/nanoparticle-NWKI-3d8aaa66-97d9-351b-9771-691300d5e97c.json
new file mode 100644
index 0000000..9b98568
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-3d8aaa66-97d9-351b-9771-691300d5e97c.json
@@ -0,0 +1,99 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-3db8eb74-b206-31ad-8c1b-3569703c47cb.json b/test/data/enm/nanoparticle-NWKI-3db8eb74-b206-31ad-8c1b-3569703c47cb.json
new file mode 100644
index 0000000..4360874
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-3db8eb74-b206-31ad-8c1b-3569703c47cb.json
@@ -0,0 +1,118 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-3e42f6e5-635a-3f1e-a51a-39ce26751ec9.json b/test/data/enm/nanoparticle-NWKI-3e42f6e5-635a-3f1e-a51a-39ce26751ec9.json
new file mode 100644
index 0000000..8bcb456
--- /dev/null
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@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3e6392b9-35fb-39ad-ad98-f6d6de37659a.json b/test/data/enm/nanoparticle-NWKI-3e6392b9-35fb-39ad-ad98-f6d6de37659a.json
new file mode 100644
index 0000000..b844b28
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+++ b/test/data/enm/nanoparticle-NWKI-3e6392b9-35fb-39ad-ad98-f6d6de37659a.json
@@ -0,0 +1,84 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-3fb9be70-8c15-3b78-94e7-5c3c88799818.json b/test/data/enm/nanoparticle-NWKI-3fb9be70-8c15-3b78-94e7-5c3c88799818.json
new file mode 100644
index 0000000..706dd39
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-3fb9be70-8c15-3b78-94e7-5c3c88799818.json
@@ -0,0 +1,203 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-408c6826-d34c-3523-ab46-d8add3ade77d.json b/test/data/enm/nanoparticle-NWKI-408c6826-d34c-3523-ab46-d8add3ade77d.json
new file mode 100644
index 0000000..80b1c37
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-408c6826-d34c-3523-ab46-d8add3ade77d.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4129bdaa-a693-326a-9c8f-67d721433481.json b/test/data/enm/nanoparticle-NWKI-4129bdaa-a693-326a-9c8f-67d721433481.json
new file mode 100644
index 0000000..2090cd1
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4129bdaa-a693-326a-9c8f-67d721433481.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-417f0133-8f2c-3255-bdcf-7d71ac295d00.json b/test/data/enm/nanoparticle-NWKI-417f0133-8f2c-3255-bdcf-7d71ac295d00.json
new file mode 100644
index 0000000..3d32ca9
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-417f0133-8f2c-3255-bdcf-7d71ac295d00.json
@@ -0,0 +1,127 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-41e63d70-d7c0-3bd2-9a65-e99dcdedb1a5.json b/test/data/enm/nanoparticle-NWKI-41e63d70-d7c0-3bd2-9a65-e99dcdedb1a5.json
new file mode 100644
index 0000000..d39f09a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-41e63d70-d7c0-3bd2-9a65-e99dcdedb1a5.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-4358aa69-dec1-387a-b7ea-2238198ccdff.json b/test/data/enm/nanoparticle-NWKI-4358aa69-dec1-387a-b7ea-2238198ccdff.json
new file mode 100644
index 0000000..af7a5af
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4358aa69-dec1-387a-b7ea-2238198ccdff.json
@@ -0,0 +1,108 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-438d1468-d5d7-3977-9dab-15a3a05add38.json b/test/data/enm/nanoparticle-NWKI-438d1468-d5d7-3977-9dab-15a3a05add38.json
new file mode 100644
index 0000000..c709aeb
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-438d1468-d5d7-3977-9dab-15a3a05add38.json
@@ -0,0 +1,108 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-448f6f9b-90a1-3e7c-a5aa-5991df77a2b1.json b/test/data/enm/nanoparticle-NWKI-448f6f9b-90a1-3e7c-a5aa-5991df77a2b1.json
new file mode 100644
index 0000000..1d57d2b
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diff --git a/test/data/enm/nanoparticle-NWKI-44b3fa7b-1667-3f4a-9e31-7a5202320cf3.json b/test/data/enm/nanoparticle-NWKI-44b3fa7b-1667-3f4a-9e31-7a5202320cf3.json
new file mode 100644
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diff --git a/test/data/enm/nanoparticle-NWKI-44b4442c-361f-309d-8c19-979f4ef5f574.json b/test/data/enm/nanoparticle-NWKI-44b4442c-361f-309d-8c19-979f4ef5f574.json
new file mode 100644
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+++ b/test/data/enm/nanoparticle-NWKI-44b4442c-361f-309d-8c19-979f4ef5f574.json
@@ -0,0 +1,26 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4551e0f7-e515-3cdb-a099-c2b99b04883d.json b/test/data/enm/nanoparticle-NWKI-4551e0f7-e515-3cdb-a099-c2b99b04883d.json
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diff --git a/test/data/enm/nanoparticle-NWKI-458c2d5a-53f0-3c65-81eb-6fb5d128db59.json b/test/data/enm/nanoparticle-NWKI-458c2d5a-53f0-3c65-81eb-6fb5d128db59.json
new file mode 100644
index 0000000..209ab03
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@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-45fc0568-39f3-33f2-bd68-f953733c0c96.json b/test/data/enm/nanoparticle-NWKI-45fc0568-39f3-33f2-bd68-f953733c0c96.json
new file mode 100644
index 0000000..2dad091
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+++ b/test/data/enm/nanoparticle-NWKI-45fc0568-39f3-33f2-bd68-f953733c0c96.json
@@ -0,0 +1,83 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-473ed1d8-ae5a-3c80-b3f7-50dbc4fd9a3b.json b/test/data/enm/nanoparticle-NWKI-473ed1d8-ae5a-3c80-b3f7-50dbc4fd9a3b.json
new file mode 100644
index 0000000..7030c84
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-473ed1d8-ae5a-3c80-b3f7-50dbc4fd9a3b.json
@@ -0,0 +1,36 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-47d254de-8242-3374-9ed3-085227d473cc.json b/test/data/enm/nanoparticle-NWKI-47d254de-8242-3374-9ed3-085227d473cc.json
new file mode 100644
index 0000000..b0fd69f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-47d254de-8242-3374-9ed3-085227d473cc.json
@@ -0,0 +1,307 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-4832de65-5a92-3849-8061-729a2d83017e.json b/test/data/enm/nanoparticle-NWKI-4832de65-5a92-3849-8061-729a2d83017e.json
new file mode 100644
index 0000000..d2ffc90
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4832de65-5a92-3849-8061-729a2d83017e.json
@@ -0,0 +1,96 @@
+{
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+    "name": "",
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+    "einecs": ""
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+  "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-4973bcff-0cf7-34d2-84ca-ea7acd65c502.json b/test/data/enm/nanoparticle-NWKI-4973bcff-0cf7-34d2-84ca-ea7acd65c502.json
new file mode 100644
index 0000000..cc08270
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4973bcff-0cf7-34d2-84ca-ea7acd65c502.json
@@ -0,0 +1,79 @@
+{
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+    "metric": null,
+    "name": "",
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+    "einecs": ""
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+  "values": {
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diff --git a/test/data/enm/nanoparticle-NWKI-4b4cb369-8202-3483-9220-553e433c9159.json b/test/data/enm/nanoparticle-NWKI-4b4cb369-8202-3483-9220-553e433c9159.json
new file mode 100644
index 0000000..2d35e12
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4b4cb369-8202-3483-9220-553e433c9159.json
@@ -0,0 +1,201 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4beee533-65e4-364a-adb7-7a520180de61.json b/test/data/enm/nanoparticle-NWKI-4beee533-65e4-364a-adb7-7a520180de61.json
new file mode 100644
index 0000000..2301df6
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4beee533-65e4-364a-adb7-7a520180de61.json
@@ -0,0 +1,152 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4dd2cfcb-0daf-33f7-ba67-f629e3019271.json b/test/data/enm/nanoparticle-NWKI-4dd2cfcb-0daf-33f7-ba67-f629e3019271.json
new file mode 100644
index 0000000..24f3c08
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4dd2cfcb-0daf-33f7-ba67-f629e3019271.json
@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4e021275-ae4e-3d24-bdb8-40c6d8d9d6fc.json b/test/data/enm/nanoparticle-NWKI-4e021275-ae4e-3d24-bdb8-40c6d8d9d6fc.json
new file mode 100644
index 0000000..03bfac8
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4e021275-ae4e-3d24-bdb8-40c6d8d9d6fc.json
@@ -0,0 +1,93 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-4e62b022-02b9-35e7-a653-7ee317f54ae8.json b/test/data/enm/nanoparticle-NWKI-4e62b022-02b9-35e7-a653-7ee317f54ae8.json
new file mode 100644
index 0000000..fa3988b
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4e62b022-02b9-35e7-a653-7ee317f54ae8.json
@@ -0,0 +1,78 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4e9fdd73-d8e6-3c95-a792-3a96ba220041.json b/test/data/enm/nanoparticle-NWKI-4e9fdd73-d8e6-3c95-a792-3a96ba220041.json
new file mode 100644
index 0000000..5995c41
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+++ b/test/data/enm/nanoparticle-NWKI-4e9fdd73-d8e6-3c95-a792-3a96ba220041.json
@@ -0,0 +1,78 @@
+{
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new file mode 100644
index 0000000..66e8d87
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@@ -0,0 +1,83 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4f91db77-4cd0-3482-b989-571d2a9a4228.json b/test/data/enm/nanoparticle-NWKI-4f91db77-4cd0-3482-b989-571d2a9a4228.json
new file mode 100644
index 0000000..89815c4
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+++ b/test/data/enm/nanoparticle-NWKI-4f91db77-4cd0-3482-b989-571d2a9a4228.json
@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-4fa19c49-f3b1-3e34-8aa4-3da258933bf8.json b/test/data/enm/nanoparticle-NWKI-4fa19c49-f3b1-3e34-8aa4-3da258933bf8.json
new file mode 100644
index 0000000..6015e35
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-4fa19c49-f3b1-3e34-8aa4-3da258933bf8.json
@@ -0,0 +1,83 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-506de59a-ae92-361b-a934-0fdfa41101c0.json b/test/data/enm/nanoparticle-NWKI-506de59a-ae92-361b-a934-0fdfa41101c0.json
new file mode 100644
index 0000000..a32fc61
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-506de59a-ae92-361b-a934-0fdfa41101c0.json
@@ -0,0 +1,254 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-509caa0e-0b8c-30e9-9592-48c6a83fe4ec.json b/test/data/enm/nanoparticle-NWKI-509caa0e-0b8c-30e9-9592-48c6a83fe4ec.json
new file mode 100644
index 0000000..1eebd2d
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-509caa0e-0b8c-30e9-9592-48c6a83fe4ec.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-50ebd964-1e95-3cdf-87e9-ff7146b93e22.json b/test/data/enm/nanoparticle-NWKI-50ebd964-1e95-3cdf-87e9-ff7146b93e22.json
new file mode 100644
index 0000000..b42bc6c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-50ebd964-1e95-3cdf-87e9-ff7146b93e22.json
@@ -0,0 +1,78 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-5136670d-2925-31d0-8e12-811f8d67677f.json b/test/data/enm/nanoparticle-NWKI-5136670d-2925-31d0-8e12-811f8d67677f.json
new file mode 100644
index 0000000..558710d
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5136670d-2925-31d0-8e12-811f8d67677f.json
@@ -0,0 +1,89 @@
+{
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+    "metric": null,
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-5172b34a-a6f6-398f-ace6-1d30e6bc9efa.json b/test/data/enm/nanoparticle-NWKI-5172b34a-a6f6-398f-ace6-1d30e6bc9efa.json
new file mode 100644
index 0000000..834a193
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5172b34a-a6f6-398f-ace6-1d30e6bc9efa.json
@@ -0,0 +1,203 @@
+{
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+    "metric": null,
+    "name": "",
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+    "einecs": ""
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-52e8adb0-6aba-3e7f-bc0c-85cb36c394a2.json b/test/data/enm/nanoparticle-NWKI-52e8adb0-6aba-3e7f-bc0c-85cb36c394a2.json
new file mode 100644
index 0000000..692cff9
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-52e8adb0-6aba-3e7f-bc0c-85cb36c394a2.json
@@ -0,0 +1,92 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+  ],
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-52edeff5-900d-3f5a-86ba-550e9b368239.json b/test/data/enm/nanoparticle-NWKI-52edeff5-900d-3f5a-86ba-550e9b368239.json
new file mode 100644
index 0000000..8bfe752
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-52edeff5-900d-3f5a-86ba-550e9b368239.json
@@ -0,0 +1,128 @@
+{
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+    "structype": "NA",
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+    "einecs": ""
+  },
+  "values": {
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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diff --git a/test/data/enm/nanoparticle-NWKI-535c1a8b-71d0-3388-aaf5-e3a5c86510cb.json b/test/data/enm/nanoparticle-NWKI-535c1a8b-71d0-3388-aaf5-e3a5c86510cb.json
new file mode 100644
index 0000000..af98778
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-535c1a8b-71d0-3388-aaf5-e3a5c86510cb.json
@@ -0,0 +1,84 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-536c91ba-6cf8-3808-b611-f7d5830f5ed8.json b/test/data/enm/nanoparticle-NWKI-536c91ba-6cf8-3808-b611-f7d5830f5ed8.json
new file mode 100644
index 0000000..3239e30
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+++ b/test/data/enm/nanoparticle-NWKI-536c91ba-6cf8-3808-b611-f7d5830f5ed8.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-5454d5cb-1033-3d6f-a31e-038752525533.json b/test/data/enm/nanoparticle-NWKI-5454d5cb-1033-3d6f-a31e-038752525533.json
new file mode 100644
index 0000000..47f6a78
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5454d5cb-1033-3d6f-a31e-038752525533.json
@@ -0,0 +1,94 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-54de4b1f-da2b-38f6-ab43-a46959eb44e2.json b/test/data/enm/nanoparticle-NWKI-54de4b1f-da2b-38f6-ab43-a46959eb44e2.json
new file mode 100644
index 0000000..0e337ef
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-54de4b1f-da2b-38f6-ab43-a46959eb44e2.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-556872ae-f5af-3e0e-a5e5-009bc0eb65b5.json b/test/data/enm/nanoparticle-NWKI-556872ae-f5af-3e0e-a5e5-009bc0eb65b5.json
new file mode 100644
index 0000000..851e59e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-556872ae-f5af-3e0e-a5e5-009bc0eb65b5.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b.json b/test/data/enm/nanoparticle-NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b.json
new file mode 100644
index 0000000..ced1a53
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+++ b/test/data/enm/nanoparticle-NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b.json
@@ -0,0 +1,143 @@
+{
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+    "name": "",
+    "cas": "",
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+  "values": {
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+    "https://data.enanomapper.net/identifier/tradename": "Harper2011 9",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+        "values": {
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+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23TradeNameDefault": "MESCoating"
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+      "relation": "HAS_COATING",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-56be1e50-c29f-3a48-b626-701f504dd1be.json b/test/data/enm/nanoparticle-NWKI-56be1e50-c29f-3a48-b626-701f504dd1be.json
new file mode 100644
index 0000000..deebb3c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-56be1e50-c29f-3a48-b626-701f504dd1be.json
@@ -0,0 +1,79 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "68",
+    "https://data.enanomapper.net/identifier/tradename": "Zhou2008 M64",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-56be1e50-c29f-3a48-b626-701f504dd1be",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
+  },
+  "facets": [
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+  ],
+  "composition": [
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+      },
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+          "metric": null,
+          "name": "",
+          "cas": "",
+          "einecs": ""
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+        "values": {
+          "https://data.enanomapper.net/identifier/uuid": "NWKI-0d61f837-0cad-3d41-af80-b84d143e1257",
+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23IUCLID5_UUIDDefault": "NWKI-0d61f837-0cad-3d41-af80-b84d143e1257",
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+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23CASRNDefault": "308068-56-6",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-56d1ba56-5960-363c-941a-16d2d7624686.json b/test/data/enm/nanoparticle-NWKI-56d1ba56-5960-363c-941a-16d2d7624686.json
new file mode 100644
index 0000000..ee759c0
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-56d1ba56-5960-363c-941a-16d2d7624686.json
@@ -0,0 +1,79 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-56d1ba56-5960-363c-941a-16d2d7624686",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
+  },
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+  ],
+  "composition": [
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+          "metric": null,
+          "name": "",
+          "cas": "",
+          "einecs": ""
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+        "values": {
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+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23CASRNDefault": "308068-56-6",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0.json b/test/data/enm/nanoparticle-NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0.json
new file mode 100644
index 0000000..1331ea4
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0.json
@@ -0,0 +1,109 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/identifier/tradename": "Gerloff2009 NM7",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/PARTICLE+SIZE/1BA3811ABDEA06BCCDBE29D2BBF8289121658065/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+    "https://data.enanomapper.net/property/P-CHEM/SPECIFIC_SURFACE_AREA_SECTION/SPECIFIC_SURFACE_AREA/CB2C470CE72633F6112D75138FF457C6B62247D2/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-575830c1-f826-37e2-b0aa-e44d3c0386be.json b/test/data/enm/nanoparticle-NWKI-575830c1-f826-37e2-b0aa-e44d3c0386be.json
new file mode 100644
index 0000000..a533baf
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-575830c1-f826-37e2-b0aa-e44d3c0386be.json
@@ -0,0 +1,79 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "67",
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-575830c1-f826-37e2-b0aa-e44d3c0386be",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+  ],
+  "composition": [
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+          "einecs": ""
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diff --git a/test/data/enm/nanoparticle-NWKI-57789117-033f-38a5-b3b1-508c85fa33a4.json b/test/data/enm/nanoparticle-NWKI-57789117-033f-38a5-b3b1-508c85fa33a4.json
new file mode 100644
index 0000000..a7143ac
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+++ b/test/data/enm/nanoparticle-NWKI-57789117-033f-38a5-b3b1-508c85fa33a4.json
@@ -0,0 +1,79 @@
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new file mode 100644
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+++ b/test/data/enm/nanoparticle-NWKI-57943982-0642-388c-be22-f1770d3b620c.json
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+{
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diff --git a/test/data/enm/nanoparticle-NWKI-57a03b07-0bb6-306c-ba30-71d5bc626385.json b/test/data/enm/nanoparticle-NWKI-57a03b07-0bb6-306c-ba30-71d5bc626385.json
new file mode 100644
index 0000000..0cd9aaa
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+{
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diff --git a/test/data/enm/nanoparticle-NWKI-5a049bb7-380d-3c89-9c39-f1310ed7b09d.json b/test/data/enm/nanoparticle-NWKI-5a049bb7-380d-3c89-9c39-f1310ed7b09d.json
new file mode 100644
index 0000000..2e18707
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@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-5adec23a-ab6a-350e-baec-cd088a4667d5.json b/test/data/enm/nanoparticle-NWKI-5adec23a-ab6a-350e-baec-cd088a4667d5.json
new file mode 100644
index 0000000..a4d1136
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+++ b/test/data/enm/nanoparticle-NWKI-5adec23a-ab6a-350e-baec-cd088a4667d5.json
@@ -0,0 +1,198 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa.json b/test/data/enm/nanoparticle-NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa.json
new file mode 100644
index 0000000..1d43ffd
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa.json
@@ -0,0 +1,91 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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diff --git a/test/data/enm/nanoparticle-NWKI-5cd085d1-3c2b-390d-8ffd-377d8f729258.json b/test/data/enm/nanoparticle-NWKI-5cd085d1-3c2b-390d-8ffd-377d8f729258.json
new file mode 100644
index 0000000..7507584
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5cd085d1-3c2b-390d-8ffd-377d8f729258.json
@@ -0,0 +1,26 @@
+{
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+    "structype": "NA",
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+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "JRCNM01100a",
+    "https://data.enanomapper.net/identifier/tradename": "JRCNM01100a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-5cd085d1-3c2b-390d-8ffd-377d8f729258",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-5e5ed57f-33d3-39bb-9511-3604a0babf5e.json b/test/data/enm/nanoparticle-NWKI-5e5ed57f-33d3-39bb-9511-3604a0babf5e.json
new file mode 100644
index 0000000..fed1f27
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5e5ed57f-33d3-39bb-9511-3604a0babf5e.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-5eff14ab-be8b-3f57-96fc-7ed09e7546b5.json b/test/data/enm/nanoparticle-NWKI-5eff14ab-be8b-3f57-96fc-7ed09e7546b5.json
new file mode 100644
index 0000000..77e2351
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5eff14ab-be8b-3f57-96fc-7ed09e7546b5.json
@@ -0,0 +1,83 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-5f88a526-3e3f-3da5-8082-8d1da0cdfefa.json b/test/data/enm/nanoparticle-NWKI-5f88a526-3e3f-3da5-8082-8d1da0cdfefa.json
new file mode 100644
index 0000000..cf6c4ad
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-5f88a526-3e3f-3da5-8082-8d1da0cdfefa.json
@@ -0,0 +1,92 @@
+{
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+    "name": "",
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+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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diff --git a/test/data/enm/nanoparticle-NWKI-5f90c0a2-07fa-3da7-afd3-861a43f8b180.json b/test/data/enm/nanoparticle-NWKI-5f90c0a2-07fa-3da7-afd3-861a43f8b180.json
new file mode 100644
index 0000000..7d6ef5e
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diff --git a/test/data/enm/nanoparticle-NWKI-605f4f43-028b-3a42-ae94-9852a9f6f5f8.json b/test/data/enm/nanoparticle-NWKI-605f4f43-028b-3a42-ae94-9852a9f6f5f8.json
new file mode 100644
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@@ -0,0 +1,93 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-61515bd0-5a80-3428-a093-01be1d677862.json b/test/data/enm/nanoparticle-NWKI-61515bd0-5a80-3428-a093-01be1d677862.json
new file mode 100644
index 0000000..b90fa8b
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diff --git a/test/data/enm/nanoparticle-NWKI-61c73e33-28ab-3387-8cdf-cb7c135fb06c.json b/test/data/enm/nanoparticle-NWKI-61c73e33-28ab-3387-8cdf-cb7c135fb06c.json
new file mode 100644
index 0000000..cd1fd28
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diff --git a/test/data/enm/nanoparticle-NWKI-6392b929-1b64-34ce-90c6-162b99ce3992.json b/test/data/enm/nanoparticle-NWKI-6392b929-1b64-34ce-90c6-162b99ce3992.json
new file mode 100644
index 0000000..546fa52
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@@ -0,0 +1,82 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-644d4c3e-73d3-3f47-adf0-03ea91150074.json b/test/data/enm/nanoparticle-NWKI-644d4c3e-73d3-3f47-adf0-03ea91150074.json
new file mode 100644
index 0000000..73afe40
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-644d4c3e-73d3-3f47-adf0-03ea91150074.json
@@ -0,0 +1,26 @@
+{
+  "compound": {
+    "URI": "https://data.enanomapper.net/substance/NWKI-644d4c3e-73d3-3f47-adf0-03ea91150074",
+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "NM-100",
+    "https://data.enanomapper.net/identifier/tradename": "JRCNM01000a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-644d4c3e-73d3-3f47-adf0-03ea91150074",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-651c965f-b68a-3ab8-8767-47c62755fa23.json b/test/data/enm/nanoparticle-NWKI-651c965f-b68a-3ab8-8767-47c62755fa23.json
new file mode 100644
index 0000000..5071486
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-651c965f-b68a-3ab8-8767-47c62755fa23.json
@@ -0,0 +1,79 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "63",
+    "https://data.enanomapper.net/identifier/tradename": "Zhou2008 M59",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-651c965f-b68a-3ab8-8767-47c62755fa23",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+  ],
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+          "name": "",
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+        "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-666817c2-87cb-3826-92f8-e79a7b37957d.json b/test/data/enm/nanoparticle-NWKI-666817c2-87cb-3826-92f8-e79a7b37957d.json
new file mode 100644
index 0000000..3e2c431
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-666817c2-87cb-3826-92f8-e79a7b37957d.json
@@ -0,0 +1,96 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "NM-104",
+    "https://data.enanomapper.net/identifier/tradename": "JRC2011 NM-104",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-666817c2-87cb-3826-92f8-e79a7b37957d",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+          "metric": null,
+          "name": "",
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+          "einecs": ""
+        },
+        "values": {
+          "https://data.enanomapper.net/identifier/uuid": "NWKI-80b69a12-be6a-3789-ac03-d86d2dad3f57",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-668fe89b-964c-384b-ae34-86a1c3070b8c.json b/test/data/enm/nanoparticle-NWKI-668fe89b-964c-384b-ae34-86a1c3070b8c.json
new file mode 100644
index 0000000..06cebef
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-668fe89b-964c-384b-ae34-86a1c3070b8c.json
@@ -0,0 +1,26 @@
+{
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+    "URI": "https://data.enanomapper.net/substance/NWKI-668fe89b-964c-384b-ae34-86a1c3070b8c",
+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "JRCNM04002a",
+    "https://data.enanomapper.net/identifier/tradename": "JRCNM04002a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-668fe89b-964c-384b-ae34-86a1c3070b8c",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+  ],
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+    }
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64.json b/test/data/enm/nanoparticle-NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64.json
new file mode 100644
index 0000000..da0c544
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64.json
@@ -0,0 +1,96 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Fe3O4",
+    "https://data.enanomapper.net/identifier/tradename": "Jeng2006 M4",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/PARTICLE+SIZE/1BA3811ABDEA06BCCDBE29D2BBF8289121658065/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+    "https://data.enanomapper.net/property/P-CHEM/ASPECT_RATIO_SHAPE_SECTION/SHAPE/3B389CA3FF3703118F312B18E1E6256289E97CA3/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+          "metric": null,
+          "name": "",
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+          "einecs": ""
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9.json b/test/data/enm/nanoparticle-NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9.json
new file mode 100644
index 0000000..48bbf18
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9.json
@@ -0,0 +1,97 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Silica nanopowder",
+    "https://data.enanomapper.net/identifier/tradename": "Aldrich 637238",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d.json b/test/data/enm/nanoparticle-NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d.json
new file mode 100644
index 0000000..2ade9b7
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d.json
@@ -0,0 +1,91 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
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+    "https://data.enanomapper.net/identifier/tradename": "JRC2011 NM-200",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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new file mode 100644
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index 0000000..adb120f
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+++ b/test/data/enm/nanoparticle-NWKI-696f7b05-2dea-3a14-b080-fef134f4eff5.json
@@ -0,0 +1,83 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-69b604fb-e892-31ba-a6f5-feb6cb04effb.json b/test/data/enm/nanoparticle-NWKI-69b604fb-e892-31ba-a6f5-feb6cb04effb.json
new file mode 100644
index 0000000..912934e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-69b604fb-e892-31ba-a6f5-feb6cb04effb.json
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diff --git a/test/data/enm/nanoparticle-NWKI-69fa9265-308d-30c5-9d86-1f18cde14afb.json b/test/data/enm/nanoparticle-NWKI-69fa9265-308d-30c5-9d86-1f18cde14afb.json
new file mode 100644
index 0000000..59cce18
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+++ b/test/data/enm/nanoparticle-NWKI-69fa9265-308d-30c5-9d86-1f18cde14afb.json
@@ -0,0 +1,82 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-6a1bf5d8-786d-3268-b852-923b3068c0d0.json b/test/data/enm/nanoparticle-NWKI-6a1bf5d8-786d-3268-b852-923b3068c0d0.json
new file mode 100644
index 0000000..e7b5189
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6a1bf5d8-786d-3268-b852-923b3068c0d0.json
@@ -0,0 +1,79 @@
+{
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+    "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-6a8efcf8-a19c-3fb3-b8ca-3f4e1a09fcb0.json b/test/data/enm/nanoparticle-NWKI-6a8efcf8-a19c-3fb3-b8ca-3f4e1a09fcb0.json
new file mode 100644
index 0000000..0f2a0e7
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+++ b/test/data/enm/nanoparticle-NWKI-6a8efcf8-a19c-3fb3-b8ca-3f4e1a09fcb0.json
@@ -0,0 +1,84 @@
+{
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+    "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-6b07ffd5-b573-3889-a64c-ae7cc99ff977.json b/test/data/enm/nanoparticle-NWKI-6b07ffd5-b573-3889-a64c-ae7cc99ff977.json
new file mode 100644
index 0000000..0158202
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6b07ffd5-b573-3889-a64c-ae7cc99ff977.json
@@ -0,0 +1,91 @@
+{
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+    "name": "",
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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diff --git a/test/data/enm/nanoparticle-NWKI-6b1b44fa-70c1-3034-9c4b-7efb334762e0.json b/test/data/enm/nanoparticle-NWKI-6b1b44fa-70c1-3034-9c4b-7efb334762e0.json
new file mode 100644
index 0000000..2f58e74
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6b1b44fa-70c1-3034-9c4b-7efb334762e0.json
@@ -0,0 +1,96 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-6b21bb47-9ae8-3fb5-9811-b7dbeecbed8e.json b/test/data/enm/nanoparticle-NWKI-6b21bb47-9ae8-3fb5-9811-b7dbeecbed8e.json
new file mode 100644
index 0000000..c12f406
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6b21bb47-9ae8-3fb5-9811-b7dbeecbed8e.json
@@ -0,0 +1,26 @@
+{
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+    "einecs": ""
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+    "https://data.enanomapper.net/identifier/tradename": "JRCNM01001a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-6b21bb47-9ae8-3fb5-9811-b7dbeecbed8e",
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diff --git a/test/data/enm/nanoparticle-NWKI-6b4d33a5-b573-3dbe-9ec3-9d2a9bc42a2e.json b/test/data/enm/nanoparticle-NWKI-6b4d33a5-b573-3dbe-9ec3-9d2a9bc42a2e.json
new file mode 100644
index 0000000..594d129
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6b4d33a5-b573-3dbe-9ec3-9d2a9bc42a2e.json
@@ -0,0 +1,36 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-6b8a44a2-b835-3f75-903c-cf0a71a247c9.json b/test/data/enm/nanoparticle-NWKI-6b8a44a2-b835-3f75-903c-cf0a71a247c9.json
new file mode 100644
index 0000000..620f2c1
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+++ b/test/data/enm/nanoparticle-NWKI-6b8a44a2-b835-3f75-903c-cf0a71a247c9.json
@@ -0,0 +1,86 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-6cab56b4-69d9-36e0-8c17-f467d08b2555.json b/test/data/enm/nanoparticle-NWKI-6cab56b4-69d9-36e0-8c17-f467d08b2555.json
new file mode 100644
index 0000000..e7ac30c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6cab56b4-69d9-36e0-8c17-f467d08b2555.json
@@ -0,0 +1,203 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-6cde234d-f073-3e1d-acd2-0ea10a01763f.json b/test/data/enm/nanoparticle-NWKI-6cde234d-f073-3e1d-acd2-0ea10a01763f.json
new file mode 100644
index 0000000..117474b
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6cde234d-f073-3e1d-acd2-0ea10a01763f.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-6d5462cc-7e11-3919-b769-135f56fd2536.json b/test/data/enm/nanoparticle-NWKI-6d5462cc-7e11-3919-b769-135f56fd2536.json
new file mode 100644
index 0000000..d4af15a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6d5462cc-7e11-3919-b769-135f56fd2536.json
@@ -0,0 +1,94 @@
+{
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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diff --git a/test/data/enm/nanoparticle-NWKI-6d8427f9-b822-3499-ba82-b32ff5dcf3ff.json b/test/data/enm/nanoparticle-NWKI-6d8427f9-b822-3499-ba82-b32ff5dcf3ff.json
new file mode 100644
index 0000000..1e68acd
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6d8427f9-b822-3499-ba82-b32ff5dcf3ff.json
@@ -0,0 +1,26 @@
+{
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-6d8427f9-b822-3499-ba82-b32ff5dcf3ff",
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diff --git a/test/data/enm/nanoparticle-NWKI-6e6a5fec-23c2-3fff-8522-a22689091196.json b/test/data/enm/nanoparticle-NWKI-6e6a5fec-23c2-3fff-8522-a22689091196.json
new file mode 100644
index 0000000..7612131
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-6e6a5fec-23c2-3fff-8522-a22689091196.json
@@ -0,0 +1,105 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-6ede15ea-8037-379f-933e-7b947e155c6a.json b/test/data/enm/nanoparticle-NWKI-6ede15ea-8037-379f-933e-7b947e155c6a.json
new file mode 100644
index 0000000..d132f7c
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+++ b/test/data/enm/nanoparticle-NWKI-6ede15ea-8037-379f-933e-7b947e155c6a.json
@@ -0,0 +1,85 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-6ede930f-f842-30d2-a564-84a5e6cda5df.json b/test/data/enm/nanoparticle-NWKI-6ede930f-f842-30d2-a564-84a5e6cda5df.json
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index 0000000..22f5a4c
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@@ -0,0 +1,79 @@
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new file mode 100644
index 0000000..786fa23
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+++ b/test/data/enm/nanoparticle-NWKI-6f02a17e-8598-32a1-bac7-e6a930ddcc3a.json
@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-7031754f-5bb6-3594-8a32-0c03256cdf61.json b/test/data/enm/nanoparticle-NWKI-7031754f-5bb6-3594-8a32-0c03256cdf61.json
new file mode 100644
index 0000000..63f29d8
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+++ b/test/data/enm/nanoparticle-NWKI-7031754f-5bb6-3594-8a32-0c03256cdf61.json
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diff --git a/test/data/enm/nanoparticle-NWKI-705f070c-0c34-3638-803b-c5e85749bf53.json b/test/data/enm/nanoparticle-NWKI-705f070c-0c34-3638-803b-c5e85749bf53.json
new file mode 100644
index 0000000..b4e5d66
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+++ b/test/data/enm/nanoparticle-NWKI-705f070c-0c34-3638-803b-c5e85749bf53.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-70e8dac6-42a3-36ed-8fa3-19ffbc3bb69f.json b/test/data/enm/nanoparticle-NWKI-70e8dac6-42a3-36ed-8fa3-19ffbc3bb69f.json
new file mode 100644
index 0000000..e92faf6
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@@ -0,0 +1,89 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-71060af4-1613-35cf-95ee-2a039be0388a.json b/test/data/enm/nanoparticle-NWKI-71060af4-1613-35cf-95ee-2a039be0388a.json
new file mode 100644
index 0000000..43a9a43
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-71060af4-1613-35cf-95ee-2a039be0388a.json
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diff --git a/test/data/enm/nanoparticle-NWKI-7181cc57-548a-3117-b59a-bfff2933c0b5.json b/test/data/enm/nanoparticle-NWKI-7181cc57-548a-3117-b59a-bfff2933c0b5.json
new file mode 100644
index 0000000..bcce41f
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+++ b/test/data/enm/nanoparticle-NWKI-7181cc57-548a-3117-b59a-bfff2933c0b5.json
@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-72ead9c0-f7c1-36f4-98c4-92faa7e81863.json b/test/data/enm/nanoparticle-NWKI-72ead9c0-f7c1-36f4-98c4-92faa7e81863.json
new file mode 100644
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diff --git a/test/data/enm/nanoparticle-NWKI-743f46ab-ca20-3f60-a14f-1695430eae68.json b/test/data/enm/nanoparticle-NWKI-743f46ab-ca20-3f60-a14f-1695430eae68.json
new file mode 100644
index 0000000..b1182a2
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+++ b/test/data/enm/nanoparticle-NWKI-743f46ab-ca20-3f60-a14f-1695430eae68.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-74c6a1ca-f415-3c86-9437-446299eb5e40.json b/test/data/enm/nanoparticle-NWKI-74c6a1ca-f415-3c86-9437-446299eb5e40.json
new file mode 100644
index 0000000..f34371f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-74c6a1ca-f415-3c86-9437-446299eb5e40.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-758c06ae-dc1f-3cbe-a409-91d14e5113d1.json b/test/data/enm/nanoparticle-NWKI-758c06ae-dc1f-3cbe-a409-91d14e5113d1.json
new file mode 100644
index 0000000..79af3e7
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-758c06ae-dc1f-3cbe-a409-91d14e5113d1.json
@@ -0,0 +1,256 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-7680f6c2-68d8-3ee4-b84b-8107da3f6e19.json b/test/data/enm/nanoparticle-NWKI-7680f6c2-68d8-3ee4-b84b-8107da3f6e19.json
new file mode 100644
index 0000000..5cdecc5
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-7680f6c2-68d8-3ee4-b84b-8107da3f6e19.json
@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-76a21bb0-1204-32e2-9005-a1e6a48f7b9a.json b/test/data/enm/nanoparticle-NWKI-76a21bb0-1204-32e2-9005-a1e6a48f7b9a.json
new file mode 100644
index 0000000..854fad4
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-76a21bb0-1204-32e2-9005-a1e6a48f7b9a.json
@@ -0,0 +1,78 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-77d81366-11b0-309b-b051-ea491e2511b4.json b/test/data/enm/nanoparticle-NWKI-77d81366-11b0-309b-b051-ea491e2511b4.json
new file mode 100644
index 0000000..cda70e3
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-77d81366-11b0-309b-b051-ea491e2511b4.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-77fb742b-c676-3ad7-bd19-6d5ec1df62ad.json b/test/data/enm/nanoparticle-NWKI-77fb742b-c676-3ad7-bd19-6d5ec1df62ad.json
new file mode 100644
index 0000000..b8a45af
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+++ b/test/data/enm/nanoparticle-NWKI-77fb742b-c676-3ad7-bd19-6d5ec1df62ad.json
@@ -0,0 +1,259 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-78f103d7-ca6c-3515-acdf-c504d48c96f9.json b/test/data/enm/nanoparticle-NWKI-78f103d7-ca6c-3515-acdf-c504d48c96f9.json
new file mode 100644
index 0000000..1175cee
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-78f103d7-ca6c-3515-acdf-c504d48c96f9.json
@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-7933a5a8-7ca0-34e3-8a7d-6f93d3df09a7.json b/test/data/enm/nanoparticle-NWKI-7933a5a8-7ca0-34e3-8a7d-6f93d3df09a7.json
new file mode 100644
index 0000000..1c67ee4
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@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-7998492c-3902-3cc2-9f92-cdfae53cfc02.json b/test/data/enm/nanoparticle-NWKI-7998492c-3902-3cc2-9f92-cdfae53cfc02.json
new file mode 100644
index 0000000..f911de5
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-7998492c-3902-3cc2-9f92-cdfae53cfc02.json
@@ -0,0 +1,86 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-7a8cde87-8021-3d12-9dfe-f408dfe81a74.json b/test/data/enm/nanoparticle-NWKI-7a8cde87-8021-3d12-9dfe-f408dfe81a74.json
new file mode 100644
index 0000000..f544c95
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+++ b/test/data/enm/nanoparticle-NWKI-7a8cde87-8021-3d12-9dfe-f408dfe81a74.json
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diff --git a/test/data/enm/nanoparticle-NWKI-7b1cbdc8-c450-3753-a5a5-f9bacfc9382e.json b/test/data/enm/nanoparticle-NWKI-7b1cbdc8-c450-3753-a5a5-f9bacfc9382e.json
new file mode 100644
index 0000000..4687826
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-7b1cbdc8-c450-3753-a5a5-f9bacfc9382e.json
@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-7b6aae8a-bc39-3794-8140-8d409630c8bc.json b/test/data/enm/nanoparticle-NWKI-7b6aae8a-bc39-3794-8140-8d409630c8bc.json
new file mode 100644
index 0000000..2969349
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@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-7cbc5266-5c2e-3821-a80a-5d6a63140d83.json b/test/data/enm/nanoparticle-NWKI-7cbc5266-5c2e-3821-a80a-5d6a63140d83.json
new file mode 100644
index 0000000..305dd20
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diff --git a/test/data/enm/nanoparticle-NWKI-7d4e9d59-fb38-37b9-99ec-b150ed7ce133.json b/test/data/enm/nanoparticle-NWKI-7d4e9d59-fb38-37b9-99ec-b150ed7ce133.json
new file mode 100644
index 0000000..dcf2710
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@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-7ec086b4-bfe8-3246-9c6c-b3565770315b.json b/test/data/enm/nanoparticle-NWKI-7ec086b4-bfe8-3246-9c6c-b3565770315b.json
new file mode 100644
index 0000000..5a80ec2
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+++ b/test/data/enm/nanoparticle-NWKI-7ec086b4-bfe8-3246-9c6c-b3565770315b.json
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new file mode 100644
index 0000000..69b6b4b
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+++ b/test/data/enm/nanoparticle-NWKI-7efe542f-264c-3b57-a516-410b730df963.json
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diff --git a/test/data/enm/nanoparticle-NWKI-7fca9f1b-fb2a-3fa5-a080-21391413787d.json b/test/data/enm/nanoparticle-NWKI-7fca9f1b-fb2a-3fa5-a080-21391413787d.json
new file mode 100644
index 0000000..f9ad4b2
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@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-80364e0e-be06-3645-a3ae-880ae0edddef.json b/test/data/enm/nanoparticle-NWKI-80364e0e-be06-3645-a3ae-880ae0edddef.json
new file mode 100644
index 0000000..e017e73
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-80364e0e-be06-3645-a3ae-880ae0edddef.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-8090df08-f0f9-3c2f-8769-b51c2adaffc1.json b/test/data/enm/nanoparticle-NWKI-8090df08-f0f9-3c2f-8769-b51c2adaffc1.json
new file mode 100644
index 0000000..b4d13b0
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+++ b/test/data/enm/nanoparticle-NWKI-8090df08-f0f9-3c2f-8769-b51c2adaffc1.json
@@ -0,0 +1,36 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-80f9ab46-f8fe-36de-9335-17c9d1dbdba5.json b/test/data/enm/nanoparticle-NWKI-80f9ab46-f8fe-36de-9335-17c9d1dbdba5.json
new file mode 100644
index 0000000..daadb54
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@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-812e122b-8bee-350d-8aea-aaaa88ce84dd.json b/test/data/enm/nanoparticle-NWKI-812e122b-8bee-350d-8aea-aaaa88ce84dd.json
new file mode 100644
index 0000000..26be738
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-812e122b-8bee-350d-8aea-aaaa88ce84dd.json
@@ -0,0 +1,128 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-81530e3f-ef6c-3120-95d4-6ce9f95cfef3.json b/test/data/enm/nanoparticle-NWKI-81530e3f-ef6c-3120-95d4-6ce9f95cfef3.json
new file mode 100644
index 0000000..fe5831b
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-81530e3f-ef6c-3120-95d4-6ce9f95cfef3.json
@@ -0,0 +1,79 @@
+{
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+    "name": "",
+    "cas": "",
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+  ],
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-8196e92b-c46d-3c14-9410-e87992810710.json b/test/data/enm/nanoparticle-NWKI-8196e92b-c46d-3c14-9410-e87992810710.json
new file mode 100644
index 0000000..72f9d93
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-8196e92b-c46d-3c14-9410-e87992810710.json
@@ -0,0 +1,206 @@
+{
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+    "name": "",
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+    "einecs": ""
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+  "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-823e6217-d5b0-3c61-b886-768cfe726d38.json b/test/data/enm/nanoparticle-NWKI-823e6217-d5b0-3c61-b886-768cfe726d38.json
new file mode 100644
index 0000000..b782ef8
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-823e6217-d5b0-3c61-b886-768cfe726d38.json
@@ -0,0 +1,87 @@
+{
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+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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diff --git a/test/data/enm/nanoparticle-NWKI-82665bf4-5c5e-325a-a7ee-44ff1c6045b7.json b/test/data/enm/nanoparticle-NWKI-82665bf4-5c5e-325a-a7ee-44ff1c6045b7.json
new file mode 100644
index 0000000..0e2083c
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+++ b/test/data/enm/nanoparticle-NWKI-82665bf4-5c5e-325a-a7ee-44ff1c6045b7.json
@@ -0,0 +1,83 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-826f2dfd-65cc-3530-9acc-6e2fc03afa83.json b/test/data/enm/nanoparticle-NWKI-826f2dfd-65cc-3530-9acc-6e2fc03afa83.json
new file mode 100644
index 0000000..5220602
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-826f2dfd-65cc-3530-9acc-6e2fc03afa83.json
@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-82b3c4c4-a4a0-335a-b50e-d85af34a8e94.json b/test/data/enm/nanoparticle-NWKI-82b3c4c4-a4a0-335a-b50e-d85af34a8e94.json
new file mode 100644
index 0000000..93828bf
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+++ b/test/data/enm/nanoparticle-NWKI-82b3c4c4-a4a0-335a-b50e-d85af34a8e94.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-82bed004-9895-3bdf-822f-0b9906d2ee06.json b/test/data/enm/nanoparticle-NWKI-82bed004-9895-3bdf-822f-0b9906d2ee06.json
new file mode 100644
index 0000000..d8a1e0a
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+++ b/test/data/enm/nanoparticle-NWKI-82bed004-9895-3bdf-822f-0b9906d2ee06.json
@@ -0,0 +1,201 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-82c12809-d7af-3061-a531-1db744c521f0.json b/test/data/enm/nanoparticle-NWKI-82c12809-d7af-3061-a531-1db744c521f0.json
new file mode 100644
index 0000000..e223bba
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-82c12809-d7af-3061-a531-1db744c521f0.json
@@ -0,0 +1,201 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-82c8feb3-2e93-3b65-9e66-359599257c6f.json b/test/data/enm/nanoparticle-NWKI-82c8feb3-2e93-3b65-9e66-359599257c6f.json
new file mode 100644
index 0000000..ccb2794
--- /dev/null
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@@ -0,0 +1,78 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-83a75181-9103-3ef9-aec7-fa38074580f6.json b/test/data/enm/nanoparticle-NWKI-83a75181-9103-3ef9-aec7-fa38074580f6.json
new file mode 100644
index 0000000..b738ab9
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+++ b/test/data/enm/nanoparticle-NWKI-83a75181-9103-3ef9-aec7-fa38074580f6.json
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diff --git a/test/data/enm/nanoparticle-NWKI-845bf8fc-788d-38f2-be58-030f27c0d337.json b/test/data/enm/nanoparticle-NWKI-845bf8fc-788d-38f2-be58-030f27c0d337.json
new file mode 100644
index 0000000..a24e2e3
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diff --git a/test/data/enm/nanoparticle-NWKI-85b50517-fdea-3aa6-abbd-dd506393aaa5.json b/test/data/enm/nanoparticle-NWKI-85b50517-fdea-3aa6-abbd-dd506393aaa5.json
new file mode 100644
index 0000000..c8e35f3
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-85b50517-fdea-3aa6-abbd-dd506393aaa5.json
@@ -0,0 +1,100 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-863267cf-faf0-349b-8046-6074d2e718b5.json b/test/data/enm/nanoparticle-NWKI-863267cf-faf0-349b-8046-6074d2e718b5.json
new file mode 100644
index 0000000..b6330e8
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+++ b/test/data/enm/nanoparticle-NWKI-863267cf-faf0-349b-8046-6074d2e718b5.json
@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-8667bfb7-a5da-3eb0-b9d7-86e2c8f06f19.json b/test/data/enm/nanoparticle-NWKI-8667bfb7-a5da-3eb0-b9d7-86e2c8f06f19.json
new file mode 100644
index 0000000..f0bb281
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-8667bfb7-a5da-3eb0-b9d7-86e2c8f06f19.json
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diff --git a/test/data/enm/nanoparticle-NWKI-86b21444-5403-3e29-b117-e09ef92cca2a.json b/test/data/enm/nanoparticle-NWKI-86b21444-5403-3e29-b117-e09ef92cca2a.json
new file mode 100644
index 0000000..19433df
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-86b21444-5403-3e29-b117-e09ef92cca2a.json
@@ -0,0 +1,93 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-87ea353c-86af-30ef-8824-78bfb4574e03.json b/test/data/enm/nanoparticle-NWKI-87ea353c-86af-30ef-8824-78bfb4574e03.json
new file mode 100644
index 0000000..c5d1181
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-87ea353c-86af-30ef-8824-78bfb4574e03.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-88767671-5631-3c93-8cfc-db0f48978e77.json b/test/data/enm/nanoparticle-NWKI-88767671-5631-3c93-8cfc-db0f48978e77.json
new file mode 100644
index 0000000..85f8bb0
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-88767671-5631-3c93-8cfc-db0f48978e77.json
@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-895a506b-c331-3576-bf9e-cbcde5822c11.json b/test/data/enm/nanoparticle-NWKI-895a506b-c331-3576-bf9e-cbcde5822c11.json
new file mode 100644
index 0000000..7c7bea2
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+++ b/test/data/enm/nanoparticle-NWKI-895a506b-c331-3576-bf9e-cbcde5822c11.json
@@ -0,0 +1,103 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-8a4b3e23-3327-3421-b20a-2e71939b44b1.json b/test/data/enm/nanoparticle-NWKI-8a4b3e23-3327-3421-b20a-2e71939b44b1.json
new file mode 100644
index 0000000..26214a2
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-8a4b3e23-3327-3421-b20a-2e71939b44b1.json
@@ -0,0 +1,256 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-8a968835-50ab-33df-bf5e-42de32d01c15.json b/test/data/enm/nanoparticle-NWKI-8a968835-50ab-33df-bf5e-42de32d01c15.json
new file mode 100644
index 0000000..401f106
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-8a968835-50ab-33df-bf5e-42de32d01c15.json
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diff --git a/test/data/enm/nanoparticle-NWKI-8b5ebb0a-d062-335d-a497-a42447031e08.json b/test/data/enm/nanoparticle-NWKI-8b5ebb0a-d062-335d-a497-a42447031e08.json
new file mode 100644
index 0000000..58cd08c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-8b5ebb0a-d062-335d-a497-a42447031e08.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-8ba8821c-f8b6-3524-9830-d02196a244e6.json b/test/data/enm/nanoparticle-NWKI-8ba8821c-f8b6-3524-9830-d02196a244e6.json
new file mode 100644
index 0000000..911690e
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+++ b/test/data/enm/nanoparticle-NWKI-8ba8821c-f8b6-3524-9830-d02196a244e6.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-8c5b9350-2c03-3173-9615-cabfbe6929c9.json b/test/data/enm/nanoparticle-NWKI-8c5b9350-2c03-3173-9615-cabfbe6929c9.json
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diff --git a/test/data/enm/nanoparticle-NWKI-8cd70c1c-17a4-3aec-8b1d-fb02c67866c8.json b/test/data/enm/nanoparticle-NWKI-8cd70c1c-17a4-3aec-8b1d-fb02c67866c8.json
new file mode 100644
index 0000000..6d17952
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@@ -0,0 +1,26 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-8ef21404-e101-37c8-8206-32f526d75012.json b/test/data/enm/nanoparticle-NWKI-8ef21404-e101-37c8-8206-32f526d75012.json
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diff --git a/test/data/enm/nanoparticle-NWKI-8f43d9fb-94ae-3d2b-8bb6-e8eb060e3b1b.json b/test/data/enm/nanoparticle-NWKI-8f43d9fb-94ae-3d2b-8bb6-e8eb060e3b1b.json
new file mode 100644
index 0000000..b41e5ce
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diff --git a/test/data/enm/nanoparticle-NWKI-8f4d47b7-8481-3d9a-9534-ec5144e705e1.json b/test/data/enm/nanoparticle-NWKI-8f4d47b7-8481-3d9a-9534-ec5144e705e1.json
new file mode 100644
index 0000000..7c85583
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-8f4d47b7-8481-3d9a-9534-ec5144e705e1.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-8f7f774c-d727-33a9-adc6-9068524faf1c.json b/test/data/enm/nanoparticle-NWKI-8f7f774c-d727-33a9-adc6-9068524faf1c.json
new file mode 100644
index 0000000..afb6ab0
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+++ b/test/data/enm/nanoparticle-NWKI-8f7f774c-d727-33a9-adc6-9068524faf1c.json
@@ -0,0 +1,256 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-905e44ef-3f7f-314d-add0-3e00439eaded.json b/test/data/enm/nanoparticle-NWKI-905e44ef-3f7f-314d-add0-3e00439eaded.json
new file mode 100644
index 0000000..4569842
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-905e44ef-3f7f-314d-add0-3e00439eaded.json
@@ -0,0 +1,93 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-90869553-c8fe-3ef6-8e68-47f392958127.json b/test/data/enm/nanoparticle-NWKI-90869553-c8fe-3ef6-8e68-47f392958127.json
new file mode 100644
index 0000000..b0a66df
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-90869553-c8fe-3ef6-8e68-47f392958127.json
@@ -0,0 +1,196 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-9142c528-4a84-3566-b678-dc1eef7d22fe.json b/test/data/enm/nanoparticle-NWKI-9142c528-4a84-3566-b678-dc1eef7d22fe.json
new file mode 100644
index 0000000..9e2ddde
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-9142c528-4a84-3566-b678-dc1eef7d22fe.json
@@ -0,0 +1,96 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-916751bb-8457-3844-87c0-ada4c6afd1ab.json b/test/data/enm/nanoparticle-NWKI-916751bb-8457-3844-87c0-ada4c6afd1ab.json
new file mode 100644
index 0000000..197739f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-916751bb-8457-3844-87c0-ada4c6afd1ab.json
@@ -0,0 +1,99 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-92e20781-9c38-3c12-a311-14eab1e776fa.json b/test/data/enm/nanoparticle-NWKI-92e20781-9c38-3c12-a311-14eab1e776fa.json
new file mode 100644
index 0000000..febd112
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-92e20781-9c38-3c12-a311-14eab1e776fa.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-959963fd-df22-35fb-b821-dd3d74dd40ce.json b/test/data/enm/nanoparticle-NWKI-959963fd-df22-35fb-b821-dd3d74dd40ce.json
new file mode 100644
index 0000000..7295ed2
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-959963fd-df22-35fb-b821-dd3d74dd40ce.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-95bb8173-3aad-3441-a50e-97e62401eadb.json b/test/data/enm/nanoparticle-NWKI-95bb8173-3aad-3441-a50e-97e62401eadb.json
new file mode 100644
index 0000000..b9671f8
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+++ b/test/data/enm/nanoparticle-NWKI-95bb8173-3aad-3441-a50e-97e62401eadb.json
@@ -0,0 +1,85 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-97103918-5eeb-36a3-9981-3aa6dcef5d4c.json b/test/data/enm/nanoparticle-NWKI-97103918-5eeb-36a3-9981-3aa6dcef5d4c.json
new file mode 100644
index 0000000..ab5f44c
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@@ -0,0 +1,127 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-97a6970a-0e83-3890-ae6e-5e83b99c0325.json b/test/data/enm/nanoparticle-NWKI-97a6970a-0e83-3890-ae6e-5e83b99c0325.json
new file mode 100644
index 0000000..da738fb
--- /dev/null
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@@ -0,0 +1,83 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-984a9c7f-2372-3b8f-9ff5-93a9f94f2eb7.json b/test/data/enm/nanoparticle-NWKI-984a9c7f-2372-3b8f-9ff5-93a9f94f2eb7.json
new file mode 100644
index 0000000..48c2b35
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@@ -0,0 +1,93 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-994226ce-df01-3717-b45d-376f645a8d47.json b/test/data/enm/nanoparticle-NWKI-994226ce-df01-3717-b45d-376f645a8d47.json
new file mode 100644
index 0000000..d146d3f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-994226ce-df01-3717-b45d-376f645a8d47.json
@@ -0,0 +1,94 @@
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new file mode 100644
index 0000000..5f2c293
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new file mode 100644
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diff --git a/test/data/enm/nanoparticle-NWKI-9a0a7a86-fd00-3835-9795-a4da7d9d1544.json b/test/data/enm/nanoparticle-NWKI-9a0a7a86-fd00-3835-9795-a4da7d9d1544.json
new file mode 100644
index 0000000..106776d
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diff --git a/test/data/enm/nanoparticle-NWKI-9a13f473-8a29-32e4-9653-ec03f5fb8923.json b/test/data/enm/nanoparticle-NWKI-9a13f473-8a29-32e4-9653-ec03f5fb8923.json
new file mode 100644
index 0000000..3d8740f
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diff --git a/test/data/enm/nanoparticle-NWKI-9a41ca03-303d-3116-89fb-2335cc1bad2d.json b/test/data/enm/nanoparticle-NWKI-9a41ca03-303d-3116-89fb-2335cc1bad2d.json
new file mode 100644
index 0000000..9fad37a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-9a41ca03-303d-3116-89fb-2335cc1bad2d.json
@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-9f37da26-8619-3eb1-9c29-e5f9ea09de54.json b/test/data/enm/nanoparticle-NWKI-9f37da26-8619-3eb1-9c29-e5f9ea09de54.json
new file mode 100644
index 0000000..7b9a891
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@@ -0,0 +1,113 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-9f46a2dd-dda3-3c99-81c0-8d904172c345.json b/test/data/enm/nanoparticle-NWKI-9f46a2dd-dda3-3c99-81c0-8d904172c345.json
new file mode 100644
index 0000000..65df5df
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-9f46a2dd-dda3-3c99-81c0-8d904172c345.json
@@ -0,0 +1,84 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-9fb12a3a-3a26-3f95-82ed-371f58d92dfe.json b/test/data/enm/nanoparticle-NWKI-9fb12a3a-3a26-3f95-82ed-371f58d92dfe.json
new file mode 100644
index 0000000..47f47c6
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+++ b/test/data/enm/nanoparticle-NWKI-9fb12a3a-3a26-3f95-82ed-371f58d92dfe.json
@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac.json b/test/data/enm/nanoparticle-NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac.json
new file mode 100644
index 0000000..47d9d0e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac.json
@@ -0,0 +1,83 @@
+{
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+    "name": "",
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+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Sb2O3",
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-a28e83ea-54da-3391-9bca-4a8891680403.json b/test/data/enm/nanoparticle-NWKI-a28e83ea-54da-3391-9bca-4a8891680403.json
new file mode 100644
index 0000000..4e6f04a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-a28e83ea-54da-3391-9bca-4a8891680403.json
@@ -0,0 +1,88 @@
+{
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+    "structype": "NA",
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+  "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-a2d5a729-4ed1-3f1b-a5fd-3bd090a48aa5.json b/test/data/enm/nanoparticle-NWKI-a2d5a729-4ed1-3f1b-a5fd-3bd090a48aa5.json
new file mode 100644
index 0000000..cc2d067
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-a2d5a729-4ed1-3f1b-a5fd-3bd090a48aa5.json
@@ -0,0 +1,93 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
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+  "values": {
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diff --git a/test/data/enm/nanoparticle-NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc.json b/test/data/enm/nanoparticle-NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc.json
new file mode 100644
index 0000000..720ead8
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc.json
@@ -0,0 +1,95 @@
+{
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+    "structype": "NA",
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+    "name": "",
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+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "ZnO",
+    "https://data.enanomapper.net/identifier/tradename": "Jeng2006 M1",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc",
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diff --git a/test/data/enm/nanoparticle-NWKI-a33b26f0-2fc7-3aa1-9dd6-27380f725bfe.json b/test/data/enm/nanoparticle-NWKI-a33b26f0-2fc7-3aa1-9dd6-27380f725bfe.json
new file mode 100644
index 0000000..ff930e4
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-a33b26f0-2fc7-3aa1-9dd6-27380f725bfe.json
@@ -0,0 +1,93 @@
+{
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+    "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-a40c7554-4bd8-3938-82a9-bf9db1f7bc13.json b/test/data/enm/nanoparticle-NWKI-a40c7554-4bd8-3938-82a9-bf9db1f7bc13.json
new file mode 100644
index 0000000..df50b87
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-a40c7554-4bd8-3938-82a9-bf9db1f7bc13.json
@@ -0,0 +1,84 @@
+{
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+    "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-a70ffcee-9967-3158-a384-765685c72a7b.json b/test/data/enm/nanoparticle-NWKI-a70ffcee-9967-3158-a384-765685c72a7b.json
new file mode 100644
index 0000000..48f4e28
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-a70ffcee-9967-3158-a384-765685c72a7b.json
@@ -0,0 +1,77 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-a855e2c5-73f1-32c0-8a87-aa521fd69928.json b/test/data/enm/nanoparticle-NWKI-a855e2c5-73f1-32c0-8a87-aa521fd69928.json
new file mode 100644
index 0000000..4a57d06
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+++ b/test/data/enm/nanoparticle-NWKI-a855e2c5-73f1-32c0-8a87-aa521fd69928.json
@@ -0,0 +1,83 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-a95db64e-5499-371a-bdce-a4aa31f93218.json b/test/data/enm/nanoparticle-NWKI-a95db64e-5499-371a-bdce-a4aa31f93218.json
new file mode 100644
index 0000000..94fe730
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+++ b/test/data/enm/nanoparticle-NWKI-a95db64e-5499-371a-bdce-a4aa31f93218.json
@@ -0,0 +1,143 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-ab2d4bdd-7a72-3e26-8552-5bb6027896bb.json b/test/data/enm/nanoparticle-NWKI-ab2d4bdd-7a72-3e26-8552-5bb6027896bb.json
new file mode 100644
index 0000000..c1b243c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ab2d4bdd-7a72-3e26-8552-5bb6027896bb.json
@@ -0,0 +1,93 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ad1d5068-29cd-3d8c-9ed0-44ed4ce06ddd.json b/test/data/enm/nanoparticle-NWKI-ad1d5068-29cd-3d8c-9ed0-44ed4ce06ddd.json
new file mode 100644
index 0000000..5ea598d
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ad1d5068-29cd-3d8c-9ed0-44ed4ce06ddd.json
@@ -0,0 +1,201 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ad44f58f-8080-3017-9f8d-485fad044849.json b/test/data/enm/nanoparticle-NWKI-ad44f58f-8080-3017-9f8d-485fad044849.json
new file mode 100644
index 0000000..585e22c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ad44f58f-8080-3017-9f8d-485fad044849.json
@@ -0,0 +1,254 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ada731e2-5e80-3cea-8a28-42e124bc110b.json b/test/data/enm/nanoparticle-NWKI-ada731e2-5e80-3cea-8a28-42e124bc110b.json
new file mode 100644
index 0000000..b0e6f42
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ada731e2-5e80-3cea-8a28-42e124bc110b.json
@@ -0,0 +1,26 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "JRCNM02001a",
+    "https://data.enanomapper.net/identifier/tradename": "JRCNM02001a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-ada731e2-5e80-3cea-8a28-42e124bc110b",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ae0be5b8-266b-3b6a-825d-55f14b51cc99.json b/test/data/enm/nanoparticle-NWKI-ae0be5b8-266b-3b6a-825d-55f14b51cc99.json
new file mode 100644
index 0000000..d2af618
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ae0be5b8-266b-3b6a-825d-55f14b51cc99.json
@@ -0,0 +1,201 @@
+{
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+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23TradeNameDefault": "PVA-2DArg7COOH"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ae63c430-7a80-35c3-828d-c859d81ce698.json b/test/data/enm/nanoparticle-NWKI-ae63c430-7a80-35c3-828d-c859d81ce698.json
new file mode 100644
index 0000000..bbf0de3
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ae63c430-7a80-35c3-828d-c859d81ce698.json
@@ -0,0 +1,88 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "CeO2NPb",
+    "https://data.enanomapper.net/identifier/tradename": "Cho2012 NM4",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-ae63c430-7a80-35c3-828d-c859d81ce698",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+  ],
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+          "metric": null,
+          "name": "",
+          "cas": "",
+          "einecs": ""
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8.json b/test/data/enm/nanoparticle-NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8.json
new file mode 100644
index 0000000..8822c6f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8.json
@@ -0,0 +1,94 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
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+    "https://data.enanomapper.net/identifier/tradename": "Lin2011 M4",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/PARTICLE+SIZE/1BA3811ABDEA06BCCDBE29D2BBF8289121658065/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/MASS+MEDIAN+AERODYNAMIC+DIAMETER/9E95D2260C00D06DE74F05A051226916AE7046C7/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+    ]
+  },
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+  ],
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+          "metric": null,
+          "name": "",
+          "cas": "",
+          "einecs": ""
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+        "values": {
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+        },
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+        ],
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+      "relation": "HAS_CORE",
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+      "remarks": "NanoWiki"
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+  }
+}
diff --git a/test/data/enm/nanoparticle-NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b.json b/test/data/enm/nanoparticle-NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b.json
new file mode 100644
index 0000000..5a5cf48
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b.json
@@ -0,0 +1,88 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "TiO2",
+    "https://data.enanomapper.net/identifier/tradename": "Shi2012 NM1",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/PARTICLE+SIZE/1BA3811ABDEA06BCCDBE29D2BBF8289121658065/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+      }
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+    "https://data.enanomapper.net/property/P-CHEM/ZETA_POTENTIAL_SECTION/ZETA+POTENTIAL/365F005E4508D8CB7C49064CE5F2D77980CF9ECC/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+      }
+    ]
+  },
+  "facets": [
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+  ],
+  "composition": [
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+      },
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+          "structype": "NA",
+          "metric": null,
+          "name": "",
+          "cas": "",
+          "einecs": ""
+        },
+        "values": {
+          "https://data.enanomapper.net/identifier/uuid": "NWKI-80b69a12-be6a-3789-ac03-d86d2dad3f57",
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+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23ChemicalNameDefault": "TiO2",
+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23CASRNDefault": "1317-70-0"
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+    }
+  ],
+  "bundles": {
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+      "remarks": "NanoWiki"
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+  }
+}
diff --git a/test/data/enm/nanoparticle-NWKI-afc33b0f-f6ce-3c1b-8a3d-cede13515323.json b/test/data/enm/nanoparticle-NWKI-afc33b0f-f6ce-3c1b-8a3d-cede13515323.json
new file mode 100644
index 0000000..7ef265b
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-afc33b0f-f6ce-3c1b-8a3d-cede13515323.json
@@ -0,0 +1,196 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-b110d018-6de0-303b-afcc-6a5e1f5911aa.json b/test/data/enm/nanoparticle-NWKI-b110d018-6de0-303b-afcc-6a5e1f5911aa.json
new file mode 100644
index 0000000..bbf98ce
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b110d018-6de0-303b-afcc-6a5e1f5911aa.json
@@ -0,0 +1,96 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-b14e37d1-8dbb-36d7-925c-4093c91a0e92.json b/test/data/enm/nanoparticle-NWKI-b14e37d1-8dbb-36d7-925c-4093c91a0e92.json
new file mode 100644
index 0000000..b0a4009
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b14e37d1-8dbb-36d7-925c-4093c91a0e92.json
@@ -0,0 +1,128 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-b19125a9-4499-3e0e-aa0c-7792401f4900.json b/test/data/enm/nanoparticle-NWKI-b19125a9-4499-3e0e-aa0c-7792401f4900.json
new file mode 100644
index 0000000..b290a88
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b19125a9-4499-3e0e-aa0c-7792401f4900.json
@@ -0,0 +1,254 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-b1c24867-234d-3404-8582-b5b8ae5e8b71.json b/test/data/enm/nanoparticle-NWKI-b1c24867-234d-3404-8582-b5b8ae5e8b71.json
new file mode 100644
index 0000000..dd7e7c7
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b1c24867-234d-3404-8582-b5b8ae5e8b71.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-b4bd899e-c57e-3aaa-bf6f-54ec8ebd6ab5.json b/test/data/enm/nanoparticle-NWKI-b4bd899e-c57e-3aaa-bf6f-54ec8ebd6ab5.json
new file mode 100644
index 0000000..625c600
--- /dev/null
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@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-b5385309-1812-33ad-a4cf-66d8d3a26bcc.json b/test/data/enm/nanoparticle-NWKI-b5385309-1812-33ad-a4cf-66d8d3a26bcc.json
new file mode 100644
index 0000000..cca5b13
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b5385309-1812-33ad-a4cf-66d8d3a26bcc.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-b54f582c-7bf6-3e5f-b205-063878b0d201.json b/test/data/enm/nanoparticle-NWKI-b54f582c-7bf6-3e5f-b205-063878b0d201.json
new file mode 100644
index 0000000..bdeca8e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b54f582c-7bf6-3e5f-b205-063878b0d201.json
@@ -0,0 +1,79 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-b6c86895-1b73-39ec-8bd2-0106e77a7673.json b/test/data/enm/nanoparticle-NWKI-b6c86895-1b73-39ec-8bd2-0106e77a7673.json
new file mode 100644
index 0000000..ef15035
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b6c86895-1b73-39ec-8bd2-0106e77a7673.json
@@ -0,0 +1,201 @@
+{
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+    "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-b707e677-1bf5-38a5-a73b-7ab5974920ac.json b/test/data/enm/nanoparticle-NWKI-b707e677-1bf5-38a5-a73b-7ab5974920ac.json
new file mode 100644
index 0000000..b7bfb9a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b707e677-1bf5-38a5-a73b-7ab5974920ac.json
@@ -0,0 +1,79 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-b8c38958-41a3-3ce6-98bb-aff01f6bf06f.json b/test/data/enm/nanoparticle-NWKI-b8c38958-41a3-3ce6-98bb-aff01f6bf06f.json
new file mode 100644
index 0000000..aca6844
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b8c38958-41a3-3ce6-98bb-aff01f6bf06f.json
@@ -0,0 +1,79 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-b8c38958-41a3-3ce6-98bb-aff01f6bf06f",
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+      },
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-b9b41028-7011-3a92-a2fa-94834b0c1b14.json b/test/data/enm/nanoparticle-NWKI-b9b41028-7011-3a92-a2fa-94834b0c1b14.json
new file mode 100644
index 0000000..a29184e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-b9b41028-7011-3a92-a2fa-94834b0c1b14.json
@@ -0,0 +1,79 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/identifier/tradename": "Zhou2008 M36",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-b9b41028-7011-3a92-a2fa-94834b0c1b14",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
+  },
+  "facets": [
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+  ],
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+      },
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+          "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ba8102ef-4641-3eaf-b285-8cf149a3073b.json b/test/data/enm/nanoparticle-NWKI-ba8102ef-4641-3eaf-b285-8cf149a3073b.json
new file mode 100644
index 0000000..541a7e3
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ba8102ef-4641-3eaf-b285-8cf149a3073b.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-bb2f1a47-0260-3271-b9c3-edb850d15be9.json b/test/data/enm/nanoparticle-NWKI-bb2f1a47-0260-3271-b9c3-edb850d15be9.json
new file mode 100644
index 0000000..3f2b441
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diff --git a/test/data/enm/nanoparticle-NWKI-bb304faf-e44e-3103-b2a6-01b99c1c23de.json b/test/data/enm/nanoparticle-NWKI-bb304faf-e44e-3103-b2a6-01b99c1c23de.json
new file mode 100644
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@@ -0,0 +1,94 @@
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new file mode 100644
index 0000000..38208b8
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+++ b/test/data/enm/nanoparticle-NWKI-bb97285c-a58f-34c0-aa16-d5eac02280fa.json
@@ -0,0 +1,36 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-bbb67d89-eaff-38ab-ba4f-403bfb064a0c.json b/test/data/enm/nanoparticle-NWKI-bbb67d89-eaff-38ab-ba4f-403bfb064a0c.json
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index 0000000..df70c45
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diff --git a/test/data/enm/nanoparticle-NWKI-bbce341e-3e4d-37f9-a891-5462ada32180.json b/test/data/enm/nanoparticle-NWKI-bbce341e-3e4d-37f9-a891-5462ada32180.json
new file mode 100644
index 0000000..6fbf9e5
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-bbce341e-3e4d-37f9-a891-5462ada32180.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-bc434442-e632-3829-be8d-64df1c9b70d3.json b/test/data/enm/nanoparticle-NWKI-bc434442-e632-3829-be8d-64df1c9b70d3.json
new file mode 100644
index 0000000..04f372f
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-bc434442-e632-3829-be8d-64df1c9b70d3.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-be3d8130-367b-30a5-8ca3-780e66a4c2e4.json b/test/data/enm/nanoparticle-NWKI-be3d8130-367b-30a5-8ca3-780e66a4c2e4.json
new file mode 100644
index 0000000..ebcbb44
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-be3d8130-367b-30a5-8ca3-780e66a4c2e4.json
@@ -0,0 +1,77 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-bec49753-e5ff-3f5d-96a4-69a07da2de45.json b/test/data/enm/nanoparticle-NWKI-bec49753-e5ff-3f5d-96a4-69a07da2de45.json
new file mode 100644
index 0000000..3a65f6d
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+++ b/test/data/enm/nanoparticle-NWKI-bec49753-e5ff-3f5d-96a4-69a07da2de45.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-c012600e-ca8e-31db-a7a8-d9f6a74e2464.json b/test/data/enm/nanoparticle-NWKI-c012600e-ca8e-31db-a7a8-d9f6a74e2464.json
new file mode 100644
index 0000000..c32f4f7
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+++ b/test/data/enm/nanoparticle-NWKI-c012600e-ca8e-31db-a7a8-d9f6a74e2464.json
@@ -0,0 +1,93 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-c05becdf-4b9b-3599-9922-89235b2e10da.json b/test/data/enm/nanoparticle-NWKI-c05becdf-4b9b-3599-9922-89235b2e10da.json
new file mode 100644
index 0000000..05cff79
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c05becdf-4b9b-3599-9922-89235b2e10da.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-c075299c-c306-341a-8ccb-62c5bd123ab3.json b/test/data/enm/nanoparticle-NWKI-c075299c-c306-341a-8ccb-62c5bd123ab3.json
new file mode 100644
index 0000000..dfee46c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c075299c-c306-341a-8ccb-62c5bd123ab3.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-c0927a67-d21d-37e8-932d-fb1607e58aee.json b/test/data/enm/nanoparticle-NWKI-c0927a67-d21d-37e8-932d-fb1607e58aee.json
new file mode 100644
index 0000000..8e04b83
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c0927a67-d21d-37e8-932d-fb1607e58aee.json
@@ -0,0 +1,111 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-c10e9034-a37c-37f8-afa4-b0e1081c6856.json b/test/data/enm/nanoparticle-NWKI-c10e9034-a37c-37f8-afa4-b0e1081c6856.json
new file mode 100644
index 0000000..7957492
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c10e9034-a37c-37f8-afa4-b0e1081c6856.json
@@ -0,0 +1,83 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-c2075a8a-c7f2-31df-9d04-1cb096cdfece.json b/test/data/enm/nanoparticle-NWKI-c2075a8a-c7f2-31df-9d04-1cb096cdfece.json
new file mode 100644
index 0000000..f1835f3
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+++ b/test/data/enm/nanoparticle-NWKI-c2075a8a-c7f2-31df-9d04-1cb096cdfece.json
@@ -0,0 +1,86 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-c2ab6def-8305-3b78-958a-4657b3363e11.json b/test/data/enm/nanoparticle-NWKI-c2ab6def-8305-3b78-958a-4657b3363e11.json
new file mode 100644
index 0000000..5e9f080
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+++ b/test/data/enm/nanoparticle-NWKI-c2ab6def-8305-3b78-958a-4657b3363e11.json
@@ -0,0 +1,93 @@
+{
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+    "name": "",
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+  "values": {
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diff --git a/test/data/enm/nanoparticle-NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2.json b/test/data/enm/nanoparticle-NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2.json
new file mode 100644
index 0000000..07ad643
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2.json
@@ -0,0 +1,83 @@
+{
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+    "name": "",
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Gd2O3",
+    "https://data.enanomapper.net/identifier/tradename": "Zhang2013 M9",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-c3d91296-7c2d-3971-b932-e671f2f83aa8.json b/test/data/enm/nanoparticle-NWKI-c3d91296-7c2d-3971-b932-e671f2f83aa8.json
new file mode 100644
index 0000000..14f7c62
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c3d91296-7c2d-3971-b932-e671f2f83aa8.json
@@ -0,0 +1,36 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-c3ff049e-e72a-35fe-9bbf-77f018259d63.json b/test/data/enm/nanoparticle-NWKI-c3ff049e-e72a-35fe-9bbf-77f018259d63.json
new file mode 100644
index 0000000..82b39db
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+++ b/test/data/enm/nanoparticle-NWKI-c3ff049e-e72a-35fe-9bbf-77f018259d63.json
@@ -0,0 +1,87 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-c4c91023-5b41-3d6d-bb4f-ee1152926be0.json b/test/data/enm/nanoparticle-NWKI-c4c91023-5b41-3d6d-bb4f-ee1152926be0.json
new file mode 100644
index 0000000..e609365
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c4c91023-5b41-3d6d-bb4f-ee1152926be0.json
@@ -0,0 +1,128 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-c5b69d5d-7850-3ccb-9632-981dd8fb10e5.json b/test/data/enm/nanoparticle-NWKI-c5b69d5d-7850-3ccb-9632-981dd8fb10e5.json
new file mode 100644
index 0000000..66b80fc
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c5b69d5d-7850-3ccb-9632-981dd8fb10e5.json
@@ -0,0 +1,26 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Asbestos",
+    "https://data.enanomapper.net/identifier/tradename": "E-GEOD-63559-M2",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-c5b69d5d-7850-3ccb-9632-981dd8fb10e5",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
+  },
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-c5e226b0-d405-32d5-a652-7f7f1f0eb55d.json b/test/data/enm/nanoparticle-NWKI-c5e226b0-d405-32d5-a652-7f7f1f0eb55d.json
new file mode 100644
index 0000000..916d432
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+++ b/test/data/enm/nanoparticle-NWKI-c5e226b0-d405-32d5-a652-7f7f1f0eb55d.json
@@ -0,0 +1,88 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-c6c08b6e-cb44-3e91-9669-0979667f12b3.json b/test/data/enm/nanoparticle-NWKI-c6c08b6e-cb44-3e91-9669-0979667f12b3.json
new file mode 100644
index 0000000..068a9f5
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+++ b/test/data/enm/nanoparticle-NWKI-c6c08b6e-cb44-3e91-9669-0979667f12b3.json
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diff --git a/test/data/enm/nanoparticle-NWKI-c7bee4e3-8884-3e29-ad8b-38decf6146fd.json b/test/data/enm/nanoparticle-NWKI-c7bee4e3-8884-3e29-ad8b-38decf6146fd.json
new file mode 100644
index 0000000..b50f653
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c7bee4e3-8884-3e29-ad8b-38decf6146fd.json
@@ -0,0 +1,203 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-c8d9772c-e50e-3c71-986c-e45692150d71.json b/test/data/enm/nanoparticle-NWKI-c8d9772c-e50e-3c71-986c-e45692150d71.json
new file mode 100644
index 0000000..2fcd7d8
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c8d9772c-e50e-3c71-986c-e45692150d71.json
@@ -0,0 +1,206 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-c93a144a-cd6d-3fe0-ab86-13adb168ccb1.json b/test/data/enm/nanoparticle-NWKI-c93a144a-cd6d-3fe0-ab86-13adb168ccb1.json
new file mode 100644
index 0000000..41f8a70
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-c93a144a-cd6d-3fe0-ab86-13adb168ccb1.json
@@ -0,0 +1,87 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-c9abfc3e-dc22-3b02-89dd-c46bb64b998f.json b/test/data/enm/nanoparticle-NWKI-c9abfc3e-dc22-3b02-89dd-c46bb64b998f.json
new file mode 100644
index 0000000..7121b71
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+++ b/test/data/enm/nanoparticle-NWKI-c9abfc3e-dc22-3b02-89dd-c46bb64b998f.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-ca37d03d-af78-3982-8ca0-76025e71fcf1.json b/test/data/enm/nanoparticle-NWKI-ca37d03d-af78-3982-8ca0-76025e71fcf1.json
new file mode 100644
index 0000000..29fc78f
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+++ b/test/data/enm/nanoparticle-NWKI-ca37d03d-af78-3982-8ca0-76025e71fcf1.json
@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-cad5bf58-cc90-33e5-88bb-bad4c9f9fe9e.json b/test/data/enm/nanoparticle-NWKI-cad5bf58-cc90-33e5-88bb-bad4c9f9fe9e.json
new file mode 100644
index 0000000..ae0bb67
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-cad5bf58-cc90-33e5-88bb-bad4c9f9fe9e.json
@@ -0,0 +1,201 @@
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-cb42fef6-1b74-3a92-9b29-3ea2418f38c2.json b/test/data/enm/nanoparticle-NWKI-cb42fef6-1b74-3a92-9b29-3ea2418f38c2.json
new file mode 100644
index 0000000..556998c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-cb42fef6-1b74-3a92-9b29-3ea2418f38c2.json
@@ -0,0 +1,78 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "JRCNM02004b",
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-cb42fef6-1b74-3a92-9b29-3ea2418f38c2",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-cc55dabc-3794-3853-9cf1-1e0bcf31fb69.json b/test/data/enm/nanoparticle-NWKI-cc55dabc-3794-3853-9cf1-1e0bcf31fb69.json
new file mode 100644
index 0000000..89fa1d4
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-cc55dabc-3794-3853-9cf1-1e0bcf31fb69.json
@@ -0,0 +1,148 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ccc62e19-8dfd-32a6-84fe-08e6ce7d12cc.json b/test/data/enm/nanoparticle-NWKI-ccc62e19-8dfd-32a6-84fe-08e6ce7d12cc.json
new file mode 100644
index 0000000..486d00e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ccc62e19-8dfd-32a6-84fe-08e6ce7d12cc.json
@@ -0,0 +1,79 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/identifier/tradename": "Zhou2008 M44",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-ccc62e19-8dfd-32a6-84fe-08e6ce7d12cc",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+      },
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+          "name": "",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-cd7cf8fc-ebd1-3b60-827c-aa33e4d5d433.json b/test/data/enm/nanoparticle-NWKI-cd7cf8fc-ebd1-3b60-827c-aa33e4d5d433.json
new file mode 100644
index 0000000..0d30fa6
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-cd7cf8fc-ebd1-3b60-827c-aa33e4d5d433.json
@@ -0,0 +1,84 @@
+{
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+    "metric": null,
+    "name": "",
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+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ce0dc642-4b41-36fa-80c0-db986a2d3b70.json b/test/data/enm/nanoparticle-NWKI-ce0dc642-4b41-36fa-80c0-db986a2d3b70.json
new file mode 100644
index 0000000..6c47ce5
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ce0dc642-4b41-36fa-80c0-db986a2d3b70.json
@@ -0,0 +1,26 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "MN-330",
+    "https://data.enanomapper.net/identifier/tradename": "JRCNM03300a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-ce0dc642-4b41-36fa-80c0-db986a2d3b70",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ce7a2667-21e4-3bd2-b1b6-bd8c298e9df4.json b/test/data/enm/nanoparticle-NWKI-ce7a2667-21e4-3bd2-b1b6-bd8c298e9df4.json
new file mode 100644
index 0000000..6f06818
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ce7a2667-21e4-3bd2-b1b6-bd8c298e9df4.json
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-cfea3b7c-ee39-34ef-8349-16b1e7825861.json b/test/data/enm/nanoparticle-NWKI-cfea3b7c-ee39-34ef-8349-16b1e7825861.json
new file mode 100644
index 0000000..f024a64
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-cfea3b7c-ee39-34ef-8349-16b1e7825861.json
@@ -0,0 +1,257 @@
+{
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+    "name": "",
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+    "https://data.enanomapper.net/identifier/tradename": "Shaw51 29",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d0227b15-023a-3fd1-b47d-0d805a24fc95.json b/test/data/enm/nanoparticle-NWKI-d0227b15-023a-3fd1-b47d-0d805a24fc95.json
new file mode 100644
index 0000000..430e81a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d0227b15-023a-3fd1-b47d-0d805a24fc95.json
@@ -0,0 +1,79 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "15",
+    "https://data.enanomapper.net/identifier/tradename": "Zhou2008 M11",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-d0227b15-023a-3fd1-b47d-0d805a24fc95",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
+  },
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+  ],
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d0a80e1b-1b7f-35c7-9185-244ccc2c04c2.json b/test/data/enm/nanoparticle-NWKI-d0a80e1b-1b7f-35c7-9185-244ccc2c04c2.json
new file mode 100644
index 0000000..668b320
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d0a80e1b-1b7f-35c7-9185-244ccc2c04c2.json
@@ -0,0 +1,88 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d0b876e3-0f35-3da8-ae72-3456689514e4.json b/test/data/enm/nanoparticle-NWKI-d0b876e3-0f35-3da8-ae72-3456689514e4.json
new file mode 100644
index 0000000..c5b8444
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d0b876e3-0f35-3da8-ae72-3456689514e4.json
@@ -0,0 +1,79 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "43",
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-d0b876e3-0f35-3da8-ae72-3456689514e4",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+
+  ],
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+      },
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+          "name": "",
+          "cas": "",
+          "einecs": ""
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+        "values": {
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+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23CASRNDefault": "308068-56-6",
+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23EINECSDefault": "936-414-1"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d1c31022-c044-30fa-931e-07d96b6f04b5.json b/test/data/enm/nanoparticle-NWKI-d1c31022-c044-30fa-931e-07d96b6f04b5.json
new file mode 100644
index 0000000..779009e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d1c31022-c044-30fa-931e-07d96b6f04b5.json
@@ -0,0 +1,93 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
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+        "values": {
+          "https://data.enanomapper.net/identifier/uuid": "NWKI-07f477ba-44d7-3058-ba0b-e6e5432d04e3",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d2c2352c-f718-3054-a3bf-f850fb417cf7.json b/test/data/enm/nanoparticle-NWKI-d2c2352c-f718-3054-a3bf-f850fb417cf7.json
new file mode 100644
index 0000000..a742bd3
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d2c2352c-f718-3054-a3bf-f850fb417cf7.json
@@ -0,0 +1,79 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "71",
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-d2c2352c-f718-3054-a3bf-f850fb417cf7",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+  ],
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+      },
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+          "name": "",
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+        "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877.json b/test/data/enm/nanoparticle-NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877.json
new file mode 100644
index 0000000..3581f74
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877.json
@@ -0,0 +1,36 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "CdSe MPA",
+    "https://data.enanomapper.net/identifier/tradename": "Nagy2012 QD10",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/PARTICLE+SIZE/1BA3811ABDEA06BCCDBE29D2BBF8289121658065/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d3c8fab1-762e-32b8-a46e-cf4158f8ec49.json b/test/data/enm/nanoparticle-NWKI-d3c8fab1-762e-32b8-a46e-cf4158f8ec49.json
new file mode 100644
index 0000000..a159b62
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d3c8fab1-762e-32b8-a46e-cf4158f8ec49.json
@@ -0,0 +1,83 @@
+{
+  "compound": {
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+    "metric": null,
+    "name": "",
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+  "values": {
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diff --git a/test/data/enm/nanoparticle-NWKI-d40f9aa2-da27-3110-a76d-3e456d5d16c8.json b/test/data/enm/nanoparticle-NWKI-d40f9aa2-da27-3110-a76d-3e456d5d16c8.json
new file mode 100644
index 0000000..f6b4067
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d40f9aa2-da27-3110-a76d-3e456d5d16c8.json
@@ -0,0 +1,79 @@
+{
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+    "name": "",
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-d40f9aa2-da27-3110-a76d-3e456d5d16c8",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-d42892b8-9b57-30a2-aa89-af61880c337a.json b/test/data/enm/nanoparticle-NWKI-d42892b8-9b57-30a2-aa89-af61880c337a.json
new file mode 100644
index 0000000..8516d77
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-d42892b8-9b57-30a2-aa89-af61880c337a.json
@@ -0,0 +1,143 @@
+{
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+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Ferrum Hausmann",
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diff --git a/test/data/enm/nanoparticle-NWKI-d47026e9-f0f9-3080-8eca-d2b7fd66d261.json b/test/data/enm/nanoparticle-NWKI-d47026e9-f0f9-3080-8eca-d2b7fd66d261.json
new file mode 100644
index 0000000..b64e8e9
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@@ -0,0 +1,84 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-d52e3489-851d-3eeb-b887-9a595cc9adfe.json b/test/data/enm/nanoparticle-NWKI-d52e3489-851d-3eeb-b887-9a595cc9adfe.json
new file mode 100644
index 0000000..c3f815b
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+++ b/test/data/enm/nanoparticle-NWKI-d52e3489-851d-3eeb-b887-9a595cc9adfe.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-d5e6bacd-f551-3224-a7a3-1a612cdd1b20.json b/test/data/enm/nanoparticle-NWKI-d5e6bacd-f551-3224-a7a3-1a612cdd1b20.json
new file mode 100644
index 0000000..4a5f5cf
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+++ b/test/data/enm/nanoparticle-NWKI-d5e6bacd-f551-3224-a7a3-1a612cdd1b20.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-d63286d0-3205-3216-92ce-e9e2632aca9e.json b/test/data/enm/nanoparticle-NWKI-d63286d0-3205-3216-92ce-e9e2632aca9e.json
new file mode 100644
index 0000000..b5952f6
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+++ b/test/data/enm/nanoparticle-NWKI-d63286d0-3205-3216-92ce-e9e2632aca9e.json
@@ -0,0 +1,254 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-d7e38d71-0fcb-3a23-8cbe-aae4ce82b33a.json b/test/data/enm/nanoparticle-NWKI-d7e38d71-0fcb-3a23-8cbe-aae4ce82b33a.json
new file mode 100644
index 0000000..1c62f65
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diff --git a/test/data/enm/nanoparticle-NWKI-d8f70c6c-3496-3ad3-8ab3-e4f08a178d30.json b/test/data/enm/nanoparticle-NWKI-d8f70c6c-3496-3ad3-8ab3-e4f08a178d30.json
new file mode 100644
index 0000000..db37cab
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diff --git a/test/data/enm/nanoparticle-NWKI-d9ca1fbc-29d5-31bf-9e86-0fefe94e53fe.json b/test/data/enm/nanoparticle-NWKI-d9ca1fbc-29d5-31bf-9e86-0fefe94e53fe.json
new file mode 100644
index 0000000..1de4d25
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@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-db562080-5286-327a-b813-6775c437385e.json b/test/data/enm/nanoparticle-NWKI-db562080-5286-327a-b813-6775c437385e.json
new file mode 100644
index 0000000..ade9053
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+++ b/test/data/enm/nanoparticle-NWKI-db562080-5286-327a-b813-6775c437385e.json
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diff --git a/test/data/enm/nanoparticle-NWKI-db9e79b1-e579-3732-9c27-51642b05f1ce.json b/test/data/enm/nanoparticle-NWKI-db9e79b1-e579-3732-9c27-51642b05f1ce.json
new file mode 100644
index 0000000..d4de180
--- /dev/null
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@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-dce4f64f-efad-316b-931a-0b16b2e63941.json b/test/data/enm/nanoparticle-NWKI-dce4f64f-efad-316b-931a-0b16b2e63941.json
new file mode 100644
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@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-dd085452-8fd2-3025-a64f-2784fdf17879.json b/test/data/enm/nanoparticle-NWKI-dd085452-8fd2-3025-a64f-2784fdf17879.json
new file mode 100644
index 0000000..64a035f
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+++ b/test/data/enm/nanoparticle-NWKI-dd085452-8fd2-3025-a64f-2784fdf17879.json
@@ -0,0 +1,85 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-dd6b8324-524e-3281-8bf4-09044fbf01ab.json b/test/data/enm/nanoparticle-NWKI-dd6b8324-524e-3281-8bf4-09044fbf01ab.json
new file mode 100644
index 0000000..c92f857
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-dd6b8324-524e-3281-8bf4-09044fbf01ab.json
@@ -0,0 +1,86 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-de03994b-9d74-3e39-aa41-e7df34384442.json b/test/data/enm/nanoparticle-NWKI-de03994b-9d74-3e39-aa41-e7df34384442.json
new file mode 100644
index 0000000..128437c
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+++ b/test/data/enm/nanoparticle-NWKI-de03994b-9d74-3e39-aa41-e7df34384442.json
@@ -0,0 +1,128 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-de41f2a0-0251-3e59-901b-1157d810c835.json b/test/data/enm/nanoparticle-NWKI-de41f2a0-0251-3e59-901b-1157d810c835.json
new file mode 100644
index 0000000..43fbfb4
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-de41f2a0-0251-3e59-901b-1157d810c835.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-df2f5618-fab4-3f50-a191-1eabaa999ff9.json b/test/data/enm/nanoparticle-NWKI-df2f5618-fab4-3f50-a191-1eabaa999ff9.json
new file mode 100644
index 0000000..4f34129
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+++ b/test/data/enm/nanoparticle-NWKI-df2f5618-fab4-3f50-a191-1eabaa999ff9.json
@@ -0,0 +1,84 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-dfbd99e5-c150-3a5e-9147-59255d42bebb.json b/test/data/enm/nanoparticle-NWKI-dfbd99e5-c150-3a5e-9147-59255d42bebb.json
new file mode 100644
index 0000000..ecff4d4
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-dfbd99e5-c150-3a5e-9147-59255d42bebb.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e0386856-5e55-330a-9b5e-364c00de2f2b.json b/test/data/enm/nanoparticle-NWKI-e0386856-5e55-330a-9b5e-364c00de2f2b.json
new file mode 100644
index 0000000..42cdff8
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e0386856-5e55-330a-9b5e-364c00de2f2b.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e053e604-6adb-3b7b-86e8-4f7ee2fb1898.json b/test/data/enm/nanoparticle-NWKI-e053e604-6adb-3b7b-86e8-4f7ee2fb1898.json
new file mode 100644
index 0000000..66e8378
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+++ b/test/data/enm/nanoparticle-NWKI-e053e604-6adb-3b7b-86e8-4f7ee2fb1898.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e078849d-6137-33fc-b103-d458cb77184a.json b/test/data/enm/nanoparticle-NWKI-e078849d-6137-33fc-b103-d458cb77184a.json
new file mode 100644
index 0000000..0cf7a45
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e078849d-6137-33fc-b103-d458cb77184a.json
@@ -0,0 +1,93 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e0ffe4e6-978c-367d-a011-bd700587c9fe.json b/test/data/enm/nanoparticle-NWKI-e0ffe4e6-978c-367d-a011-bd700587c9fe.json
new file mode 100644
index 0000000..7344f82
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e0ffe4e6-978c-367d-a011-bd700587c9fe.json
@@ -0,0 +1,86 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e14c3de8-6c96-3f77-a5b3-2e93cb4d09af.json b/test/data/enm/nanoparticle-NWKI-e14c3de8-6c96-3f77-a5b3-2e93cb4d09af.json
new file mode 100644
index 0000000..856b71d
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+++ b/test/data/enm/nanoparticle-NWKI-e14c3de8-6c96-3f77-a5b3-2e93cb4d09af.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e24378b0-c0bb-365a-b533-e8f303681c2e.json b/test/data/enm/nanoparticle-NWKI-e24378b0-c0bb-365a-b533-e8f303681c2e.json
new file mode 100644
index 0000000..108193c
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@@ -0,0 +1,83 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e373781b-461e-35dd-ae27-4169b7d743af.json b/test/data/enm/nanoparticle-NWKI-e373781b-461e-35dd-ae27-4169b7d743af.json
new file mode 100644
index 0000000..5ca2b4f
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+++ b/test/data/enm/nanoparticle-NWKI-e373781b-461e-35dd-ae27-4169b7d743af.json
@@ -0,0 +1,201 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e476955f-97bd-3e4c-8bef-03f56fe1b15b.json b/test/data/enm/nanoparticle-NWKI-e476955f-97bd-3e4c-8bef-03f56fe1b15b.json
new file mode 100644
index 0000000..a95731b
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@@ -0,0 +1,83 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e4dab3d9-2699-3a0b-9e9c-f257088142cc.json b/test/data/enm/nanoparticle-NWKI-e4dab3d9-2699-3a0b-9e9c-f257088142cc.json
new file mode 100644
index 0000000..71bb353
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e4dab3d9-2699-3a0b-9e9c-f257088142cc.json
@@ -0,0 +1,138 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e518c122-5f4f-3611-8b30-56b671883e5c.json b/test/data/enm/nanoparticle-NWKI-e518c122-5f4f-3611-8b30-56b671883e5c.json
new file mode 100644
index 0000000..ed02c63
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e518c122-5f4f-3611-8b30-56b671883e5c.json
@@ -0,0 +1,256 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e5b618fd-dd48-3562-9a55-737ac7a68466.json b/test/data/enm/nanoparticle-NWKI-e5b618fd-dd48-3562-9a55-737ac7a68466.json
new file mode 100644
index 0000000..5a28493
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e5b618fd-dd48-3562-9a55-737ac7a68466.json
@@ -0,0 +1,309 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-e624f68e-2e00-30e4-b4bb-9e34383580cb.json b/test/data/enm/nanoparticle-NWKI-e624f68e-2e00-30e4-b4bb-9e34383580cb.json
new file mode 100644
index 0000000..5d74f95
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e624f68e-2e00-30e4-b4bb-9e34383580cb.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e6dfb823-e9fe-3ae9-9384-ef86f6d8cd5e.json b/test/data/enm/nanoparticle-NWKI-e6dfb823-e9fe-3ae9-9384-ef86f6d8cd5e.json
new file mode 100644
index 0000000..72779bb
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+++ b/test/data/enm/nanoparticle-NWKI-e6dfb823-e9fe-3ae9-9384-ef86f6d8cd5e.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e6ef5597-a3f9-3f21-afff-db5f654ef534.json b/test/data/enm/nanoparticle-NWKI-e6ef5597-a3f9-3f21-afff-db5f654ef534.json
new file mode 100644
index 0000000..681046c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e6ef5597-a3f9-3f21-afff-db5f654ef534.json
@@ -0,0 +1,94 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-e7bdb2a3-0b3f-3a38-8d6b-1babc6d92da1.json b/test/data/enm/nanoparticle-NWKI-e7bdb2a3-0b3f-3a38-8d6b-1babc6d92da1.json
new file mode 100644
index 0000000..780b0cb
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e7bdb2a3-0b3f-3a38-8d6b-1babc6d92da1.json
@@ -0,0 +1,89 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e834e3f1-8c0d-319e-9bac-21c613bdccd0.json b/test/data/enm/nanoparticle-NWKI-e834e3f1-8c0d-319e-9bac-21c613bdccd0.json
new file mode 100644
index 0000000..92af4c3
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e834e3f1-8c0d-319e-9bac-21c613bdccd0.json
@@ -0,0 +1,143 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-e85f1dfb-0830-32a3-8394-c2cce810e3e2.json b/test/data/enm/nanoparticle-NWKI-e85f1dfb-0830-32a3-8394-c2cce810e3e2.json
new file mode 100644
index 0000000..728833c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e85f1dfb-0830-32a3-8394-c2cce810e3e2.json
@@ -0,0 +1,84 @@
+{
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+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23ChemicalNameDefault": "C",
+          "https://data.enanomapper.net/feature/http%3A%2F%2Fwww.opentox.org%2Fapi%2F1.1%23CASRNDefault": "308068-56-6",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-e866549e-38cf-3b98-a0b1-a483e275d261.json b/test/data/enm/nanoparticle-NWKI-e866549e-38cf-3b98-a0b1-a483e275d261.json
new file mode 100644
index 0000000..495fa85
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e866549e-38cf-3b98-a0b1-a483e275d261.json
@@ -0,0 +1,102 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "TiO2",
+    "https://data.enanomapper.net/identifier/tradename": "Jeng2006 M2",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-e866549e-38cf-3b98-a0b1-a483e275d261",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
+    "https://data.enanomapper.net/property/P-CHEM/PC_GRANULOMETRY_SECTION/PARTICLE+SIZE/1BA3811ABDEA06BCCDBE29D2BBF8289121658065/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5.json b/test/data/enm/nanoparticle-NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5.json
new file mode 100644
index 0000000..a29aa27
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5.json
@@ -0,0 +1,94 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "CeO2 IV",
+    "https://data.enanomapper.net/identifier/tradename": "Limbach2005 NM4",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6.json b/test/data/enm/nanoparticle-NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6.json
new file mode 100644
index 0000000..21b4ef8
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6.json
@@ -0,0 +1,94 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "NM-400",
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
+    "https://data.enanomapper.net/property/P-CHEM/SPECIFIC_SURFACE_AREA_SECTION/SPECIFIC_SURFACE_AREA/CB2C470CE72633F6112D75138FF457C6B62247D2/NOTSPECIFIED/d41d8cd9-8f00-3204-a980-0998ecf8427e": [
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-e9c5527c-1603-322f-9b91-7830420a24d4.json b/test/data/enm/nanoparticle-NWKI-e9c5527c-1603-322f-9b91-7830420a24d4.json
new file mode 100644
index 0000000..b8b3911
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-e9c5527c-1603-322f-9b91-7830420a24d4.json
@@ -0,0 +1,26 @@
+{
+  "compound": {
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Glass wool",
+    "https://data.enanomapper.net/identifier/tradename": "E-GEOD-63559-M3",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-e9c5527c-1603-322f-9b91-7830420a24d4",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
+  },
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+  ],
+  "bundles": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ea2bb63b-fd2a-32c2-a41a-d0280abaf29f.json b/test/data/enm/nanoparticle-NWKI-ea2bb63b-fd2a-32c2-a41a-d0280abaf29f.json
new file mode 100644
index 0000000..ff15566
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ea2bb63b-fd2a-32c2-a41a-d0280abaf29f.json
@@ -0,0 +1,93 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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+    "https://data.enanomapper.net/identifier/tradename": "Cytotox2011Puzyn14",
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+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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+        "values": {
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ea48c37d-840a-30d2-9740-1198a7e2c3b6.json b/test/data/enm/nanoparticle-NWKI-ea48c37d-840a-30d2-9740-1198a7e2c3b6.json
new file mode 100644
index 0000000..38d7b3b
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ea48c37d-840a-30d2-9740-1198a7e2c3b6.json
@@ -0,0 +1,97 @@
+{
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+    "structype": "NA",
+    "metric": null,
+    "name": "",
+    "cas": "",
+    "einecs": ""
+  },
+  "values": {
+    "https://data.enanomapper.net/identifier/name": "Silica nanopowder",
+    "https://data.enanomapper.net/identifier/tradename": "Aldrich 718483",
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diff --git a/test/data/enm/nanoparticle-NWKI-eb1607f5-ab08-3d94-9038-bbb8400e5e06.json b/test/data/enm/nanoparticle-NWKI-eb1607f5-ab08-3d94-9038-bbb8400e5e06.json
new file mode 100644
index 0000000..548ca4c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-eb1607f5-ab08-3d94-9038-bbb8400e5e06.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-ec00c05f-0b35-3c5a-b16f-7a3560213764.json b/test/data/enm/nanoparticle-NWKI-ec00c05f-0b35-3c5a-b16f-7a3560213764.json
new file mode 100644
index 0000000..20a392e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ec00c05f-0b35-3c5a-b16f-7a3560213764.json
@@ -0,0 +1,256 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-eccbd5c0-7cdb-3dc5-b9e3-8a7e17b3915a.json b/test/data/enm/nanoparticle-NWKI-eccbd5c0-7cdb-3dc5-b9e3-8a7e17b3915a.json
new file mode 100644
index 0000000..1317826
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-eccbd5c0-7cdb-3dc5-b9e3-8a7e17b3915a.json
@@ -0,0 +1,84 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-ed06c39e-c7f2-3173-bd74-35b8257544b5.json b/test/data/enm/nanoparticle-NWKI-ed06c39e-c7f2-3173-bd74-35b8257544b5.json
new file mode 100644
index 0000000..0f1eaea
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+++ b/test/data/enm/nanoparticle-NWKI-ed06c39e-c7f2-3173-bd74-35b8257544b5.json
@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-ed924e24-42e3-32d4-96ef-a5c14364ce26.json b/test/data/enm/nanoparticle-NWKI-ed924e24-42e3-32d4-96ef-a5c14364ce26.json
new file mode 100644
index 0000000..7321b22
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ed924e24-42e3-32d4-96ef-a5c14364ce26.json
@@ -0,0 +1,26 @@
+{
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+    "name": "",
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+    "einecs": ""
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+  "values": {
+    "https://data.enanomapper.net/identifier/name": "NM-103",
+    "https://data.enanomapper.net/identifier/tradename": "JRCNM01003a",
+    "https://data.enanomapper.net/identifier/uuid": "NWKI-ed924e24-42e3-32d4-96ef-a5c14364ce26",
+    "https://data.enanomapper.net/owner/name": "NanoWiki"
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-ede00e9f-201f-33c9-9191-8dbf67fcf1b1.json b/test/data/enm/nanoparticle-NWKI-ede00e9f-201f-33c9-9191-8dbf67fcf1b1.json
new file mode 100644
index 0000000..d15509e
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ede00e9f-201f-33c9-9191-8dbf67fcf1b1.json
@@ -0,0 +1,198 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-ede0d5b5-191a-3003-ac70-a97397ea7bb2.json b/test/data/enm/nanoparticle-NWKI-ede0d5b5-191a-3003-ac70-a97397ea7bb2.json
new file mode 100644
index 0000000..001b6a7
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ede0d5b5-191a-3003-ac70-a97397ea7bb2.json
@@ -0,0 +1,93 @@
+{
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+  "values": {
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diff --git a/test/data/enm/nanoparticle-NWKI-ee237892-6184-3016-92af-b41dc14e9f9b.json b/test/data/enm/nanoparticle-NWKI-ee237892-6184-3016-92af-b41dc14e9f9b.json
new file mode 100644
index 0000000..d7dc70c
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ee237892-6184-3016-92af-b41dc14e9f9b.json
@@ -0,0 +1,203 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-ef6b55e8-e60a-3fe8-b58e-5e37ee807dc3.json b/test/data/enm/nanoparticle-NWKI-ef6b55e8-e60a-3fe8-b58e-5e37ee807dc3.json
new file mode 100644
index 0000000..14d65aa
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ef6b55e8-e60a-3fe8-b58e-5e37ee807dc3.json
@@ -0,0 +1,79 @@
+{
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+    "name": "",
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diff --git a/test/data/enm/nanoparticle-NWKI-ef8660fd-e624-3a94-91bc-ad5a6e47bcf3.json b/test/data/enm/nanoparticle-NWKI-ef8660fd-e624-3a94-91bc-ad5a6e47bcf3.json
new file mode 100644
index 0000000..c7e204d
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ef8660fd-e624-3a94-91bc-ad5a6e47bcf3.json
@@ -0,0 +1,148 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-f1cc0abb-2905-3699-be62-b238a21e6bad.json b/test/data/enm/nanoparticle-NWKI-f1cc0abb-2905-3699-be62-b238a21e6bad.json
new file mode 100644
index 0000000..b869f66
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-f1cc0abb-2905-3699-be62-b238a21e6bad.json
@@ -0,0 +1,93 @@
+{
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+}
diff --git a/test/data/enm/nanoparticle-NWKI-f3be029d-68f6-310a-87a4-ceffee1b4eda.json b/test/data/enm/nanoparticle-NWKI-f3be029d-68f6-310a-87a4-ceffee1b4eda.json
new file mode 100644
index 0000000..6b4f90a
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-f3be029d-68f6-310a-87a4-ceffee1b4eda.json
@@ -0,0 +1,94 @@
+{
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+    "name": "",
+    "cas": "",
+    "einecs": ""
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+  "values": {
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diff --git a/test/data/enm/nanoparticle-NWKI-f40bfb8a-1280-35a2-866c-42b5a3ce13e7.json b/test/data/enm/nanoparticle-NWKI-f40bfb8a-1280-35a2-866c-42b5a3ce13e7.json
new file mode 100644
index 0000000..9e90ba5
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@@ -0,0 +1,94 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-f4579554-a7fc-3e3f-991a-3b016207fa06.json b/test/data/enm/nanoparticle-NWKI-f4579554-a7fc-3e3f-991a-3b016207fa06.json
new file mode 100644
index 0000000..989f68b
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+++ b/test/data/enm/nanoparticle-NWKI-f4579554-a7fc-3e3f-991a-3b016207fa06.json
@@ -0,0 +1,83 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-f5c4a09b-ce0a-3ff4-8d51-e200080a1ef5.json b/test/data/enm/nanoparticle-NWKI-f5c4a09b-ce0a-3ff4-8d51-e200080a1ef5.json
new file mode 100644
index 0000000..fe49d93
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+++ b/test/data/enm/nanoparticle-NWKI-f5c4a09b-ce0a-3ff4-8d51-e200080a1ef5.json
@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-f5e6d597-5acc-36a2-b631-b258fdeed741.json b/test/data/enm/nanoparticle-NWKI-f5e6d597-5acc-36a2-b631-b258fdeed741.json
new file mode 100644
index 0000000..960b408
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+++ b/test/data/enm/nanoparticle-NWKI-f5e6d597-5acc-36a2-b631-b258fdeed741.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-f6f54a71-9459-397b-b0f7-b27538cff042.json b/test/data/enm/nanoparticle-NWKI-f6f54a71-9459-397b-b0f7-b27538cff042.json
new file mode 100644
index 0000000..4c94d8a
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+++ b/test/data/enm/nanoparticle-NWKI-f6f54a71-9459-397b-b0f7-b27538cff042.json
@@ -0,0 +1,89 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-f805b6f2-65b6-3dc4-917e-22a06bceffdf.json b/test/data/enm/nanoparticle-NWKI-f805b6f2-65b6-3dc4-917e-22a06bceffdf.json
new file mode 100644
index 0000000..46b3c9d
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-f805b6f2-65b6-3dc4-917e-22a06bceffdf.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-f861208b-7805-30e7-867d-e100659eef99.json b/test/data/enm/nanoparticle-NWKI-f861208b-7805-30e7-867d-e100659eef99.json
new file mode 100644
index 0000000..0a9a609
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-f861208b-7805-30e7-867d-e100659eef99.json
@@ -0,0 +1,26 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-f90f7f33-091c-3d54-b313-213083c0e052.json b/test/data/enm/nanoparticle-NWKI-f90f7f33-091c-3d54-b313-213083c0e052.json
new file mode 100644
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diff --git a/test/data/enm/nanoparticle-NWKI-f926951f-587c-3206-88c9-bd92614da153.json b/test/data/enm/nanoparticle-NWKI-f926951f-587c-3206-88c9-bd92614da153.json
new file mode 100644
index 0000000..965e0ac
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diff --git a/test/data/enm/nanoparticle-NWKI-f9f316e8-e8a9-37f9-877f-86519b3af20e.json b/test/data/enm/nanoparticle-NWKI-f9f316e8-e8a9-37f9-877f-86519b3af20e.json
new file mode 100644
index 0000000..7672de9
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@@ -0,0 +1,254 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce.json b/test/data/enm/nanoparticle-NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce.json
new file mode 100644
index 0000000..5e3b3ac
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+++ b/test/data/enm/nanoparticle-NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce.json
@@ -0,0 +1,36 @@
+{
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+    "https://data.enanomapper.net/identifier/uuid": "NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce",
+    "https://data.enanomapper.net/owner/name": "NanoWiki",
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diff --git a/test/data/enm/nanoparticle-NWKI-fd13d773-6ecf-3c5f-a939-ad83e99b9c02.json b/test/data/enm/nanoparticle-NWKI-fd13d773-6ecf-3c5f-a939-ad83e99b9c02.json
new file mode 100644
index 0000000..be75fc9
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+++ b/test/data/enm/nanoparticle-NWKI-fd13d773-6ecf-3c5f-a939-ad83e99b9c02.json
@@ -0,0 +1,79 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-fd891814-04d2-30bc-a0b6-cc3149bf75ec.json b/test/data/enm/nanoparticle-NWKI-fd891814-04d2-30bc-a0b6-cc3149bf75ec.json
new file mode 100644
index 0000000..1baef24
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-fd891814-04d2-30bc-a0b6-cc3149bf75ec.json
@@ -0,0 +1,93 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-fdab53f4-57f3-3501-9bfc-a4ae95c4ec44.json b/test/data/enm/nanoparticle-NWKI-fdab53f4-57f3-3501-9bfc-a4ae95c4ec44.json
new file mode 100644
index 0000000..a24871a
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+++ b/test/data/enm/nanoparticle-NWKI-fdab53f4-57f3-3501-9bfc-a4ae95c4ec44.json
@@ -0,0 +1,151 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-fe2fdf36-ff42-347a-b2f9-fd7a3627fd41.json b/test/data/enm/nanoparticle-NWKI-fe2fdf36-ff42-347a-b2f9-fd7a3627fd41.json
new file mode 100644
index 0000000..c689756
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+++ b/test/data/enm/nanoparticle-NWKI-fe2fdf36-ff42-347a-b2f9-fd7a3627fd41.json
@@ -0,0 +1,79 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-fe8fe744-ea1f-3841-9a6d-f81be44651a8.json b/test/data/enm/nanoparticle-NWKI-fe8fe744-ea1f-3841-9a6d-f81be44651a8.json
new file mode 100644
index 0000000..d51b16f
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+++ b/test/data/enm/nanoparticle-NWKI-fe8fe744-ea1f-3841-9a6d-f81be44651a8.json
@@ -0,0 +1,143 @@
+{
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diff --git a/test/data/enm/nanoparticle-NWKI-ff480524-2eb0-39e2-a449-47c026f09eb9.json b/test/data/enm/nanoparticle-NWKI-ff480524-2eb0-39e2-a449-47c026f09eb9.json
new file mode 100644
index 0000000..cdb64c0
--- /dev/null
+++ b/test/data/enm/nanoparticle-NWKI-ff480524-2eb0-39e2-a449-47c026f09eb9.json
@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-ff85c0ea-c908-35c8-9f1c-bfd037800a31.json b/test/data/enm/nanoparticle-NWKI-ff85c0ea-c908-35c8-9f1c-bfd037800a31.json
new file mode 100644
index 0000000..b51ef90
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+++ b/test/data/enm/nanoparticle-NWKI-ff85c0ea-c908-35c8-9f1c-bfd037800a31.json
@@ -0,0 +1,88 @@
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diff --git a/test/data/enm/nanoparticle-NWKI-fff7eca3-dcbb-334d-b6f1-a1dad747e6d0.json b/test/data/enm/nanoparticle-NWKI-fff7eca3-dcbb-334d-b6f1-a1dad747e6d0.json
new file mode 100644
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diff --git a/test/data/enm/nanoparticle-XLSX-00cd0ac9-9adc-38a5-9520-89ddd591f75f.json b/test/data/enm/nanoparticle-XLSX-00cd0ac9-9adc-38a5-9520-89ddd591f75f.json
new file mode 100644
index 0000000..bd84ffa
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diff --git a/test/data/enm/nanoparticle-XLSX-251091e3-55d1-36b3-854c-d1933ec46461.json b/test/data/enm/nanoparticle-XLSX-251091e3-55d1-36b3-854c-d1933ec46461.json
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diff --git a/test/data/enm/nanoparticle-XLSX-2acfa382-5109-3e49-9fd4-ef8d139be4b2.json b/test/data/enm/nanoparticle-XLSX-2acfa382-5109-3e49-9fd4-ef8d139be4b2.json
new file mode 100644
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new file mode 100644
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diff --git a/test/data/enm/nanoparticle-XLSX-53ac37fa-9e10-3f71-9d74-bc47f28880ff.json b/test/data/enm/nanoparticle-XLSX-53ac37fa-9e10-3f71-9d74-bc47f28880ff.json
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diff --git a/test/data/enm/nanoparticle-XLSX-92788191-34d9-39b4-aa9c-503da51fc1a6.json b/test/data/enm/nanoparticle-XLSX-92788191-34d9-39b4-aa9c-503da51fc1a6.json
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diff --git a/test/data/enm/nanoparticle-XLSX-93b2da85-fc0c-315f-8d3b-77f1a7776fb4.json b/test/data/enm/nanoparticle-XLSX-93b2da85-fc0c-315f-8d3b-77f1a7776fb4.json
new file mode 100644
index 0000000..e6b426a
--- /dev/null
+++ b/test/data/enm/nanoparticle-XLSX-93b2da85-fc0c-315f-8d3b-77f1a7776fb4.json
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diff --git a/test/data/enm/nanoparticle-XLSX-95020ff3-17ee-3889-8a9f-f2555dc4a930.json b/test/data/enm/nanoparticle-XLSX-95020ff3-17ee-3889-8a9f-f2555dc4a930.json
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diff --git a/test/data/enm/nanoparticle-XLSX-a0d9ab63-ee03-3224-984a-4bd276e3ea3a.json b/test/data/enm/nanoparticle-XLSX-a0d9ab63-ee03-3224-984a-4bd276e3ea3a.json
new file mode 100644
index 0000000..69ee4cc
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+++ b/test/data/enm/nanoparticle-XLSX-a0d9ab63-ee03-3224-984a-4bd276e3ea3a.json
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diff --git a/test/data/enm/nanoparticle-XLSX-a1b25bf2-6046-3c16-ba1c-3efb11b5a4d6.json b/test/data/enm/nanoparticle-XLSX-a1b25bf2-6046-3c16-ba1c-3efb11b5a4d6.json
new file mode 100644
index 0000000..067423d
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+++ b/test/data/enm/nanoparticle-XLSX-a1b25bf2-6046-3c16-ba1c-3efb11b5a4d6.json
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diff --git a/test/data/enm/nanoparticle-XLSX-a44564c5-1458-3e3b-aca7-d63f5221d2a8.json b/test/data/enm/nanoparticle-XLSX-a44564c5-1458-3e3b-aca7-d63f5221d2a8.json
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diff --git a/test/data/enm/nanoparticle-XLSX-bbff7bfc-273b-3dfb-be71-5afb33113e53.json b/test/data/enm/nanoparticle-XLSX-bbff7bfc-273b-3dfb-be71-5afb33113e53.json
new file mode 100644
index 0000000..4d02f8c
--- /dev/null
+++ b/test/data/enm/nanoparticle-XLSX-bbff7bfc-273b-3dfb-be71-5afb33113e53.json
@@ -0,0 +1,170 @@
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diff --git a/test/data/enm/nanoparticle-XLSX-d3a9ce39-6c15-3e4b-a5ce-5ea23e45ff16.json b/test/data/enm/nanoparticle-XLSX-d3a9ce39-6c15-3e4b-a5ce-5ea23e45ff16.json
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diff --git a/test/data/enm/nanoparticle-XLSX-fa48e134-54cf-3417-a63a-6f744191cec2.json b/test/data/enm/nanoparticle-XLSX-fa48e134-54cf-3417-a63a-6f744191cec2.json
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diff --git a/test/data/enm/nanoparticle-XLSX-ffd24485-3b05-3afe-b6ff-547800723f71.json b/test/data/enm/nanoparticle-XLSX-ffd24485-3b05-3afe-b6ff-547800723f71.json
new file mode 100644
index 0000000..3527ef7
--- /dev/null
+++ b/test/data/enm/nanoparticle-XLSX-ffd24485-3b05-3afe-b6ff-547800723f71.json
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diff --git a/test/data/enm/study-FCSV-0d5c0fc7-de56-3507-b651-1c91bf030465.json b/test/data/enm/study-FCSV-0d5c0fc7-de56-3507-b651-1c91bf030465.json
new file mode 100644
index 0000000..7f1db85
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+++ b/test/data/enm/study-FCSV-0d5c0fc7-de56-3507-b651-1c91bf030465.json
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+{
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+}
diff --git a/test/data/enm/study-FCSV-0e958d54-f957-37d2-91d1-ee8d9961548e.json b/test/data/enm/study-FCSV-0e958d54-f957-37d2-91d1-ee8d9961548e.json
new file mode 100644
index 0000000..862a08d
--- /dev/null
+++ b/test/data/enm/study-FCSV-0e958d54-f957-37d2-91d1-ee8d9961548e.json
@@ -0,0 +1,63 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+      "title": "4.30 Nanomaterial surface chemistry"
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+        "textValue": "[Ag]"
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+}
diff --git a/test/data/enm/study-FCSV-0fe5f223-9c02-363c-a23c-70f1f36ffbec.json b/test/data/enm/study-FCSV-0fe5f223-9c02-363c-a23c-70f1f36ffbec.json
new file mode 100644
index 0000000..a6f6012
--- /dev/null
+++ b/test/data/enm/study-FCSV-0fe5f223-9c02-363c-a23c-70f1f36ffbec.json
@@ -0,0 +1,86 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
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+    "guideline": [
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+    ]
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+        "loQualifier": "mean",
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+}
diff --git a/test/data/enm/study-FCSV-1180669a-fc30-3bc1-b53e-6a200c4248e4.json b/test/data/enm/study-FCSV-1180669a-fc30-3bc1-b53e-6a200c4248e4.json
new file mode 100644
index 0000000..9e66515
--- /dev/null
+++ b/test/data/enm/study-FCSV-1180669a-fc30-3bc1-b53e-6a200c4248e4.json
@@ -0,0 +1,59 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+      "title": "7.99 Toxicity (other)"
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+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
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+    "testmat_form": null
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diff --git a/test/data/enm/study-FCSV-130b04ab-86e6-38d6-9276-e2db1b4dcffb.json b/test/data/enm/study-FCSV-130b04ab-86e6-38d6-9276-e2db1b4dcffb.json
new file mode 100644
index 0000000..20d75f5
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+++ b/test/data/enm/study-FCSV-130b04ab-86e6-38d6-9276-e2db1b4dcffb.json
@@ -0,0 +1,85 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
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+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
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+}
diff --git a/test/data/enm/study-FCSV-1842b3a2-413c-327c-a07a-9905269bafb5.json b/test/data/enm/study-FCSV-1842b3a2-413c-327c-a07a-9905269bafb5.json
new file mode 100644
index 0000000..9da8ea2
--- /dev/null
+++ b/test/data/enm/study-FCSV-1842b3a2-413c-327c-a07a-9905269bafb5.json
@@ -0,0 +1,85 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+  },
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
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+    {
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+    },
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+}
diff --git a/test/data/enm/study-FCSV-1a71d2b3-8121-3790-a66b-774b12829bb3.json b/test/data/enm/study-FCSV-1a71d2b3-8121-3790-a66b-774b12829bb3.json
new file mode 100644
index 0000000..5143496
--- /dev/null
+++ b/test/data/enm/study-FCSV-1a71d2b3-8121-3790-a66b-774b12829bb3.json
@@ -0,0 +1,63 @@
+{
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
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+    "owner": null
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+      "title": "4.30 Nanomaterial surface chemistry"
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+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "[Au]"
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+}
diff --git a/test/data/enm/study-FCSV-1c9a58a0-cd91-3636-8f7c-4fd886f8593a.json b/test/data/enm/study-FCSV-1c9a58a0-cd91-3636-8f7c-4fd886f8593a.json
new file mode 100644
index 0000000..e412698
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+++ b/test/data/enm/study-FCSV-1c9a58a0-cd91-3636-8f7c-4fd886f8593a.json
@@ -0,0 +1,73 @@
+{
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
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+      "title": "4.26 Nanomaterial crystallite and grain size"
+    },
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+    "guideline": [
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+    ]
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+    "Type of method": "DLS",
+    "testmat_form": null
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+    },
+    {
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+        "loQualifier": "mean",
+        "loValue": 0.086,
+        "errQualifier": "sd",
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+}
diff --git a/test/data/enm/study-FCSV-1f4a28c8-ecc6-342f-8cbf-1ed579dd34f4.json b/test/data/enm/study-FCSV-1f4a28c8-ecc6-342f-8cbf-1ed579dd34f4.json
new file mode 100644
index 0000000..bd9455e
--- /dev/null
+++ b/test/data/enm/study-FCSV-1f4a28c8-ecc6-342f-8cbf-1ed579dd34f4.json
@@ -0,0 +1,85 @@
+{
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+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "loQualifier": "mean",
+        "loValue": 12,
+        "errQualifier": "sd",
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+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
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diff --git a/test/data/enm/study-FCSV-206b1a13-e02a-38a0-88ec-d5a8bfdabc55.json b/test/data/enm/study-FCSV-206b1a13-e02a-38a0-88ec-d5a8bfdabc55.json
new file mode 100644
index 0000000..3cedd63
--- /dev/null
+++ b/test/data/enm/study-FCSV-206b1a13-e02a-38a0-88ec-d5a8bfdabc55.json
@@ -0,0 +1,80 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
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+    "category": {
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+      "title": "4.30 Nanomaterial surface chemistry"
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+      },
+      "result": {
+        "unit": null,
+        "textValue": "2-Naphthalenethiol"
+      }
+    },
+    {
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+      },
+      "result": {
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+        "textValue": "Pluronic F-127"
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+}
diff --git a/test/data/enm/study-FCSV-2a853f39-424f-3a63-91f3-1300f85ebe73.json b/test/data/enm/study-FCSV-2a853f39-424f-3a63-91f3-1300f85ebe73.json
new file mode 100644
index 0000000..2fd9a03
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+++ b/test/data/enm/study-FCSV-2a853f39-424f-3a63-91f3-1300f85ebe73.json
@@ -0,0 +1,73 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+    "category": {
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+      "title": "7.99 Toxicity (other)"
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+    "endpoint": "ICP-AES",
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+    ]
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+    "DATA_GATHERING_INSTRUMENTS": "Perkin-Elmer",
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+      }
+    },
+    {
+      "endpoint": "Log2 transformed",
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+        "loQualifier": "mean",
+        "loValue": -7.294,
+        "errQualifier": "std",
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diff --git a/test/data/enm/study-FCSV-2b9a077f-bef3-3ffd-a83a-77dd85db129a.json b/test/data/enm/study-FCSV-2b9a077f-bef3-3ffd-a83a-77dd85db129a.json
new file mode 100644
index 0000000..d937d57
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+++ b/test/data/enm/study-FCSV-2b9a077f-bef3-3ffd-a83a-77dd85db129a.json
@@ -0,0 +1,85 @@
+{
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+    "year": "2014",
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+  },
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
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+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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diff --git a/test/data/enm/study-FCSV-2de5071e-596b-3507-84fc-f9ba470cbcbf.json b/test/data/enm/study-FCSV-2de5071e-596b-3507-84fc-f9ba470cbcbf.json
new file mode 100644
index 0000000..ed2c7b8
--- /dev/null
+++ b/test/data/enm/study-FCSV-2de5071e-596b-3507-84fc-f9ba470cbcbf.json
@@ -0,0 +1,77 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+  },
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+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "DLS",
+    "guideline": [
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+    ]
+  },
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+    "Type of method": "DLS",
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+}
diff --git a/test/data/enm/study-FCSV-2ed7ebf8-d11d-3f39-8f05-b0132ec4d7e0.json b/test/data/enm/study-FCSV-2ed7ebf8-d11d-3f39-8f05-b0132ec4d7e0.json
new file mode 100644
index 0000000..1d90d55
--- /dev/null
+++ b/test/data/enm/study-FCSV-2ed7ebf8-d11d-3f39-8f05-b0132ec4d7e0.json
@@ -0,0 +1,77 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
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+      "title": "4.29 Nanomaterial zeta potential"
+    },
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+    "guideline": [
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+    ]
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+    "testmat_form": null
+  },
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+      }
+    },
+    {
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+      "conditions": {
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+      },
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-31bd6c7b-3247-3db9-93b6-59e0d3ecefa9.json b/test/data/enm/study-FCSV-31bd6c7b-3247-3db9-93b6-59e0d3ecefa9.json
new file mode 100644
index 0000000..3699329
--- /dev/null
+++ b/test/data/enm/study-FCSV-31bd6c7b-3247-3db9-93b6-59e0d3ecefa9.json
@@ -0,0 +1,63 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
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+          "loValue": "CORE"
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+        "textValue": "[Ag]"
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diff --git a/test/data/enm/study-FCSV-3adf8c83-83b1-3ffa-8868-b8527d83923b.json b/test/data/enm/study-FCSV-3adf8c83-83b1-3ffa-8868-b8527d83923b.json
new file mode 100644
index 0000000..5170089
--- /dev/null
+++ b/test/data/enm/study-FCSV-3adf8c83-83b1-3ffa-8868-b8527d83923b.json
@@ -0,0 +1,77 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
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+    },
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+    ]
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diff --git a/test/data/enm/study-FCSV-3b96ad7a-bf2d-360d-881a-26094f498af6.json b/test/data/enm/study-FCSV-3b96ad7a-bf2d-360d-881a-26094f498af6.json
new file mode 100644
index 0000000..bf6845a
--- /dev/null
+++ b/test/data/enm/study-FCSV-3b96ad7a-bf2d-360d-881a-26094f498af6.json
@@ -0,0 +1,77 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+      "title": "4.29 Nanomaterial zeta potential"
+    },
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+    "guideline": [
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+    "testmat_form": null
+  },
+  "reliability": {
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+    },
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+        "loQualifier": "mean",
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+}
diff --git a/test/data/enm/study-FCSV-3c5fb4b0-2e4e-3dae-9eb2-1dbfd202cd13.json b/test/data/enm/study-FCSV-3c5fb4b0-2e4e-3dae-9eb2-1dbfd202cd13.json
new file mode 100644
index 0000000..48d5e18
--- /dev/null
+++ b/test/data/enm/study-FCSV-3c5fb4b0-2e4e-3dae-9eb2-1dbfd202cd13.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-fd148a7f-b3e9-3fb4-a4c9-7541c2416a0a",
+  "owner": {
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
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+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
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+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
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+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "loQualifier": "mean",
+        "loValue": 11,
+        "errQualifier": "sd",
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+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "loQualifier": "mean",
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+}
diff --git a/test/data/enm/study-FCSV-4026a85b-f254-3d35-bd77-c634d38e4a22.json b/test/data/enm/study-FCSV-4026a85b-f254-3d35-bd77-c634d38e4a22.json
new file mode 100644
index 0000000..f88f266
--- /dev/null
+++ b/test/data/enm/study-FCSV-4026a85b-f254-3d35-bd77-c634d38e4a22.json
@@ -0,0 +1,114 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
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+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "TEM",
+    "guideline": [
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+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Tecnai 20 (FEI) microscope;Tecnai 20 (FEI) microscope;AMT 16000 camera",
+    "Type of method": "TEM",
+    "testmat_form": null
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+      "result": {
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diff --git a/test/data/enm/study-FCSV-43f0ea59-aa2f-31d8-8d87-19c95ec9be18.json b/test/data/enm/study-FCSV-43f0ea59-aa2f-31d8-8d87-19c95ec9be18.json
new file mode 100644
index 0000000..0cfe63a
--- /dev/null
+++ b/test/data/enm/study-FCSV-43f0ea59-aa2f-31d8-8d87-19c95ec9be18.json
@@ -0,0 +1,169 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
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+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
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+    "Type of method": "DLS",
+    "testmat_form": null
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+        "loValue": 114.95,
+        "errQualifier": "sd",
+        "errorValue": 23.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-45779e93-a25d-39cc-9294-afc0b59f3cd6.json b/test/data/enm/study-FCSV-45779e93-a25d-39cc-9294-afc0b59f3cd6.json
new file mode 100644
index 0000000..39ba8b9
--- /dev/null
+++ b/test/data/enm/study-FCSV-45779e93-a25d-39cc-9294-afc0b59f3cd6.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "FCSV-cc033080-b0f0-3b18-8b73-cedb239b11aa",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-45779e93-a25d-39cc-9294-afc0b59f3cd6"
+    },
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Description",
+    "guideline": [
+      "Description"
+    ]
+  },
+  "parameters": {
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+    "testmat_form": null
+  },
+  "reliability": {
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+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
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+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": null,
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "[Au]"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-4683cde2-ec2e-3a2e-974a-3ba15cd79d05.json b/test/data/enm/study-FCSV-4683cde2-ec2e-3a2e-974a-3ba15cd79d05.json
new file mode 100644
index 0000000..2436bce
--- /dev/null
+++ b/test/data/enm/study-FCSV-4683cde2-ec2e-3a2e-974a-3ba15cd79d05.json
@@ -0,0 +1,63 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Description",
+    "guideline": [
+      "Description"
+    ]
+  },
+  "parameters": {
+    "Type of method": null,
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": null,
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "[Ag]"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-47e98c51-7508-362f-84d3-494bb124b849.json b/test/data/enm/study-FCSV-47e98c51-7508-362f-84d3-494bb124b849.json
new file mode 100644
index 0000000..6c181e4
--- /dev/null
+++ b/test/data/enm/study-FCSV-47e98c51-7508-362f-84d3-494bb124b849.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "FCSV-e139a372-bb63-32da-bb83-6f6aa453c3d8",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-47e98c51-7508-362f-84d3-494bb124b849"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
+    "Type of method": "LC MS/MS",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Spectral counts",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "textValue": 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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-4c523ea9-f3e8-32f4-9152-f73400aedb67.json b/test/data/enm/study-FCSV-4c523ea9-f3e8-32f4-9152-f73400aedb67.json
new file mode 100644
index 0000000..3680440
--- /dev/null
+++ b/test/data/enm/study-FCSV-4c523ea9-f3e8-32f4-9152-f73400aedb67.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "FCSV-f6c85c90-cb36-3ad8-9f2c-63cfcfcb76eb",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-4c523ea9-f3e8-32f4-9152-f73400aedb67"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Description",
+    "guideline": [
+      "Description"
+    ]
+  },
+  "parameters": {
+    "Type of method": null,
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": null,
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "[Au]"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-4dd1bf89-e885-3128-abe2-9a87fbbd0242.json b/test/data/enm/study-FCSV-4dd1bf89-e885-3128-abe2-9a87fbbd0242.json
new file mode 100644
index 0000000..61ad395
--- /dev/null
+++ b/test/data/enm/study-FCSV-4dd1bf89-e885-3128-abe2-9a87fbbd0242.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "FCSV-e9c24201-2e88-31b2-81b5-b6b352493777",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-4dd1bf89-e885-3128-abe2-9a87fbbd0242"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
+    "Type of method": "LC MS/MS",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Spectral counts",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "textValue": 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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-50aee86c-a3a2-3c46-86bf-5ac25485fc13.json b/test/data/enm/study-FCSV-50aee86c-a3a2-3c46-86bf-5ac25485fc13.json
new file mode 100644
index 0000000..5587c68
--- /dev/null
+++ b/test/data/enm/study-FCSV-50aee86c-a3a2-3c46-86bf-5ac25485fc13.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "FCSV-fe8ecf8c-598a-317a-a1c6-c4c68ce8d41f",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-50aee86c-a3a2-3c46-86bf-5ac25485fc13"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Total protein (BCA assay)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug",
+        "loQualifier": "mean",
+        "loValue": 0.622,
+        "errQualifier": "sd",
+        "errorValue": 0.615
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-5b29295c-f2ab-3e5a-bb32-37caac38b002.json b/test/data/enm/study-FCSV-5b29295c-f2ab-3e5a-bb32-37caac38b002.json
new file mode 100644
index 0000000..64bdc3a
--- /dev/null
+++ b/test/data/enm/study-FCSV-5b29295c-f2ab-3e5a-bb32-37caac38b002.json
@@ -0,0 +1,63 @@
+{
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+  "owner": {
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+      "uuid": "FCSV-5b29295c-f2ab-3e5a-bb32-37caac38b002"
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
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+      "Description"
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+        "TYPE": {
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+          "loValue": "CORE"
+        }
+      },
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+        "textValue": "[Au]"
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+}
diff --git a/test/data/enm/study-FCSV-5c14595c-0e23-3f37-aaad-9988eba09196.json b/test/data/enm/study-FCSV-5c14595c-0e23-3f37-aaad-9988eba09196.json
new file mode 100644
index 0000000..77b4ba5
--- /dev/null
+++ b/test/data/enm/study-FCSV-5c14595c-0e23-3f37-aaad-9988eba09196.json
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+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
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+      ""
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+        "textValue": "Thiolated L-threonine"
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+}
diff --git a/test/data/enm/study-FCSV-6046fc9f-3c73-3215-97e2-4ddcf85f41da.json b/test/data/enm/study-FCSV-6046fc9f-3c73-3215-97e2-4ddcf85f41da.json
new file mode 100644
index 0000000..dbfdd8f
--- /dev/null
+++ b/test/data/enm/study-FCSV-6046fc9f-3c73-3215-97e2-4ddcf85f41da.json
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+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
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+    "guideline": [
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+    ]
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+    "testmat_form": null
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+        "errQualifier": "sd",
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+    {
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+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "errQualifier": "sd",
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+    {
+      "endpoint": "Protein density",
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+        "MEDIUM": "Human serum (Sigma #H4522)"
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+}
diff --git a/test/data/enm/study-FCSV-62d68a47-f27e-3d76-a7cf-5cacae221ec7.json b/test/data/enm/study-FCSV-62d68a47-f27e-3d76-a7cf-5cacae221ec7.json
new file mode 100644
index 0000000..576bdb7
--- /dev/null
+++ b/test/data/enm/study-FCSV-62d68a47-f27e-3d76-a7cf-5cacae221ec7.json
@@ -0,0 +1,73 @@
+{
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
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+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
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+    "endpoint": "ICP-AES",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Perkin-Elmer",
+    "Type of method": "ICP-AES",
+    "testmat_form": null
+  },
+  "reliability": {
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+  "effects": [
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+      "conditions": {
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+      },
+      "result": {
+        "unit": "mL/ug(Mg)",
+        "loQualifier": "mean",
+        "loValue": 0.243,
+        "errQualifier": "sd",
+        "errorValue": 0.028
+      }
+    },
+    {
+      "endpoint": "Log2 transformed",
+      "conditions": {
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+      },
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+        "loQualifier": "mean",
+        "loValue": -2.043,
+        "errQualifier": "std",
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-63da0f0e-51b8-3c56-b5d3-d4e0e9fb06a6.json b/test/data/enm/study-FCSV-63da0f0e-51b8-3c56-b5d3-d4e0e9fb06a6.json
new file mode 100644
index 0000000..0c03721
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+++ b/test/data/enm/study-FCSV-63da0f0e-51b8-3c56-b5d3-d4e0e9fb06a6.json
@@ -0,0 +1,63 @@
+{
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+  "owner": {
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
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+        "textValue": "Methoxy-poly(ethylene glycol)-thiol (20kDa) (low density)"
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-6405ef25-683e-3763-a4e3-f56eb93174e4.json b/test/data/enm/study-FCSV-6405ef25-683e-3763-a4e3-f56eb93174e4.json
new file mode 100644
index 0000000..0246966
--- /dev/null
+++ b/test/data/enm/study-FCSV-6405ef25-683e-3763-a4e3-f56eb93174e4.json
@@ -0,0 +1,77 @@
+{
+  "uuid": "FCSV-f4140b2c-a916-3d24-b8e5-25a6fa9ba4a6",
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "topcategory": "P-CHEM",
+    "category": {
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+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "DLS",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "ZetaSizer Nano ZS (Malvern Instruments)",
+    "Type of method": "DLS",
+    "testmat_form": null
+  },
+  "reliability": {
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+        "pH": null
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+        "errorValue": 2.17
+      }
+    },
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+        "pH": null
+      },
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-6aea0743-7abb-3448-85ce-961b67fca97f.json b/test/data/enm/study-FCSV-6aea0743-7abb-3448-85ce-961b67fca97f.json
new file mode 100644
index 0000000..1f445f3
--- /dev/null
+++ b/test/data/enm/study-FCSV-6aea0743-7abb-3448-85ce-961b67fca97f.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "FCSV-f97ae05b-a17c-3728-add7-43957623ba89",
+  "owner": {
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+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "CRYSTALLITE_AND_GRAIN_SIZE_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.26 Nanomaterial crystallite and grain size"
+    },
+    "endpoint": "DLS",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "ZetaSizer Nano ZS (Malvern Instruments)",
+    "Type of method": "DLS",
+    "testmat_form": null
+  },
+  "reliability": {
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+      "conditions": {
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+        "loQualifier": "mean",
+        "loValue": 0.099,
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+      }
+    },
+    {
+      "endpoint": "Polydispersity index",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "loValue": 0.086,
+        "errQualifier": "sd",
+        "errorValue": 0.029
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-6b15ab65-c2d3-3e58-ac04-18d8e1d45a7a.json b/test/data/enm/study-FCSV-6b15ab65-c2d3-3e58-ac04-18d8e1d45a7a.json
new file mode 100644
index 0000000..f3be6b9
--- /dev/null
+++ b/test/data/enm/study-FCSV-6b15ab65-c2d3-3e58-ac04-18d8e1d45a7a.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-e0fdf31b-bf9e-3d9a-970f-1fb13ed9b963",
+  "owner": {
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+    },
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
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+    "testmat_form": null
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+  "reliability": {
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+    "r_studyResultType": "experimental result",
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+  },
+  "interpretation": {
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+      "conditions": {
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+      "result": {
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+        "loQualifier": "mean",
+        "loValue": 265.702,
+        "errQualifier": "sd",
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+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "unit": "cm^2",
+        "loQualifier": "mean",
+        "loValue": 11,
+        "errQualifier": "sd",
+        "errorValue": 0.0
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug/cm^2",
+        "loQualifier": "mean",
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+  ]
+}
diff --git a/test/data/enm/study-FCSV-6b272721-ed04-31bd-a4d4-cb6496140e85.json b/test/data/enm/study-FCSV-6b272721-ed04-31bd-a4d4-cb6496140e85.json
new file mode 100644
index 0000000..c2278bd
--- /dev/null
+++ b/test/data/enm/study-FCSV-6b272721-ed04-31bd-a4d4-cb6496140e85.json
@@ -0,0 +1,114 @@
+{
+  "uuid": "FCSV-f6a8d4f7-7006-3b77-85bd-25ab632ecf15",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-6b272721-ed04-31bd-a4d4-cb6496140e85"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "TEM",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Tecnai 20 (FEI) microscope;Tecnai 20 (FEI) microscope;AMT 16000 camera",
+    "Type of method": "TEM",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Core size",
+      "conditions": {
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": "mean",
+        "loValue": 31.6,
+        "errQualifier": "sd",
+        "errorValue": 3.8
+      }
+    },
+    {
+      "endpoint": "Density",
+      "conditions": {
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "g/cm^3",
+        "loQualifier": "",
+        "loValue": 19.1
+      }
+    },
+    {
+      "endpoint": "MW",
+      "conditions": {
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "g/mol",
+        "loQualifier": "",
+        "loValue": 197
+      }
+    },
+    {
+      "endpoint": "Mol/NP",
+      "conditions": {
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "",
+        "loValue": 0.0
+      }
+    },
+    {
+      "endpoint": "SA/NP",
+      "conditions": {
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "cm^2/NP",
+        "loQualifier": "",
+        "loValue": 0.0
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-6d5b38c4-f57f-31de-b8b4-2719792f82f2.json b/test/data/enm/study-FCSV-6d5b38c4-f57f-31de-b8b4-2719792f82f2.json
new file mode 100644
index 0000000..93d48b3
--- /dev/null
+++ b/test/data/enm/study-FCSV-6d5b38c4-f57f-31de-b8b4-2719792f82f2.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-e85722df-5306-36c4-8574-35d4cbd566a5",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-6d5b38c4-f57f-31de-b8b4-2719792f82f2"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Autot (ICP-AES)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "nmol",
+        "loQualifier": "mean",
+        "loValue": 213.324,
+        "errQualifier": "sd",
+        "errorValue": 4.554
+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "cm^2",
+        "loQualifier": "mean",
+        "loValue": 9,
+        "errQualifier": "sd",
+        "errorValue": 0.0
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug/cm^2",
+        "loQualifier": "mean",
+        "loValue": 0.0,
+        "errQualifier": "sem",
+        "errorValue": 0.069
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-6d8b8701-7fca-3936-a45e-66c17012fc75.json b/test/data/enm/study-FCSV-6d8b8701-7fca-3936-a45e-66c17012fc75.json
new file mode 100644
index 0000000..f6ee292
--- /dev/null
+++ b/test/data/enm/study-FCSV-6d8b8701-7fca-3936-a45e-66c17012fc75.json
@@ -0,0 +1,86 @@
+{
+  "uuid": "FCSV-f133447c-3dfe-371b-b333-9617ccf98fe5",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-6d8b8701-7fca-3936-a45e-66c17012fc75"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Absorbance.spectrophotometry.AS.",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "UV-1601PC absorbance spectrophotometer (Shimadzu)",
+    "Type of method": "Absorbance.spectrophotometry.AS.",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.362,
+        "errQualifier": "sd",
+        "errorValue": 0.147
+      }
+    },
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.326,
+        "errQualifier": "sd",
+        "errorValue": 0.023
+      }
+    },
+    {
+      "endpoint": "LSPR peak position (nm)",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": "mean",
+        "loValue": 537.23,
+        "errQualifier": "sd",
+        "errorValue": 1.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-6ed95128-c2b8-3cfe-a0b4-29d2b06c6bc6.json b/test/data/enm/study-FCSV-6ed95128-c2b8-3cfe-a0b4-29d2b06c6bc6.json
new file mode 100644
index 0000000..6a76d0d
--- /dev/null
+++ b/test/data/enm/study-FCSV-6ed95128-c2b8-3cfe-a0b4-29d2b06c6bc6.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "FCSV-f02a92e5-ec5a-368c-a276-4aa421c17d84",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-6ed95128-c2b8-3cfe-a0b4-29d2b06c6bc6"
+    },
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
+    "Type of method": "LC MS/MS",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
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+  "effects": [
+    {
+      "endpoint": "Spectral counts",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-70406142-0fd6-30bd-873b-5cce39016ed5.json b/test/data/enm/study-FCSV-70406142-0fd6-30bd-873b-5cce39016ed5.json
new file mode 100644
index 0000000..07a52c2
--- /dev/null
+++ b/test/data/enm/study-FCSV-70406142-0fd6-30bd-873b-5cce39016ed5.json
@@ -0,0 +1,86 @@
+{
+  "uuid": "FCSV-f7acf54b-25cd-3e8e-ad60-7ff84e60fc04",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-70406142-0fd6-30bd-873b-5cce39016ed5"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Absorbance.spectrophotometry.AS.",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "UV-1601PC absorbance spectrophotometer (Shimadzu)",
+    "Type of method": "Absorbance.spectrophotometry.AS.",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.242,
+        "errQualifier": "sd",
+        "errorValue": 0.026
+      }
+    },
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.29,
+        "errQualifier": "sd",
+        "errorValue": 0.024
+      }
+    },
+    {
+      "endpoint": "LSPR peak position (nm)",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": "mean",
+        "loValue": 539.7,
+        "errQualifier": "sd",
+        "errorValue": 0.96
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-7087aac7-6f1d-320f-bfde-5897fe91af64.json b/test/data/enm/study-FCSV-7087aac7-6f1d-320f-bfde-5897fe91af64.json
new file mode 100644
index 0000000..f6fe6c4
--- /dev/null
+++ b/test/data/enm/study-FCSV-7087aac7-6f1d-320f-bfde-5897fe91af64.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-d6e973d8-90fa-347a-afd4-f796d4003e6a",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-7087aac7-6f1d-320f-bfde-5897fe91af64"
+    },
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "topcategory": "P-CHEM",
+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
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+    "r_studyResultType": "experimental result",
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+  },
+  "interpretation": {
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+  },
+  "effects": [
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+      "endpoint": "Autot (ICP-AES)",
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+        "MEDIUM": "Human serum (Sigma #H4522)"
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+      "result": {
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+        "loQualifier": "mean",
+        "loValue": 266.518,
+        "errQualifier": "sd",
+        "errorValue": 7.118
+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "cm^2",
+        "loQualifier": "mean",
+        "loValue": 11,
+        "errQualifier": "sd",
+        "errorValue": 0.0
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug/cm^2",
+        "loQualifier": "mean",
+        "loValue": 0.0,
+        "errQualifier": "sem",
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+}
diff --git a/test/data/enm/study-FCSV-74492618-7ff6-39c9-b396-8d7465109083.json b/test/data/enm/study-FCSV-74492618-7ff6-39c9-b396-8d7465109083.json
new file mode 100644
index 0000000..e60a7d0
--- /dev/null
+++ b/test/data/enm/study-FCSV-74492618-7ff6-39c9-b396-8d7465109083.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "FCSV-d8b05422-362d-30bc-aa07-c48fcb3b23e4",
+  "owner": {
+    "substance": {
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+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
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+  },
+  "effects": [
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+      "endpoint": "Total protein (BCA assay)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
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+        "loQualifier": "mean",
+        "loValue": 0.08,
+        "errQualifier": "sd",
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-770a2d39-1509-3c93-b28f-1d3e345de450.json b/test/data/enm/study-FCSV-770a2d39-1509-3c93-b28f-1d3e345de450.json
new file mode 100644
index 0000000..7baa59b
--- /dev/null
+++ b/test/data/enm/study-FCSV-770a2d39-1509-3c93-b28f-1d3e345de450.json
@@ -0,0 +1,169 @@
+{
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "DLS",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
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+    "Type of method": "DLS",
+    "testmat_form": null
+  },
+  "reliability": {
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+        "SEQ_NUM": null
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+        "loQualifier": "mean",
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+        "errQualifier": "sd",
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+    {
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+      "conditions": {
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+        "PHRASEOTHER_PERCENTILE": null,
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+        "errQualifier": "sd",
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+    },
+    {
+      "endpoint": "Volume Mean Hydrodynamic Diameter",
+      "conditions": {
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+        "loValue": 39.88,
+        "errQualifier": "sd",
+        "errorValue": 1.69
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+    {
+      "endpoint": "Number Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": " ",
+        "PHRASEOTHER_PERCENTILE": null,
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+        "errorValue": 3.27
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+    },
+    {
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+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
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+    },
+    {
+      "endpoint": "Intensity Mean Hydrodynamic Diameter",
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+        "loValue": 42.65,
+        "errQualifier": "sd",
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+}
diff --git a/test/data/enm/study-FCSV-7ad8c003-d0ee-3ea6-9374-b6e4d2f33401.json b/test/data/enm/study-FCSV-7ad8c003-d0ee-3ea6-9374-b6e4d2f33401.json
new file mode 100644
index 0000000..738b987
--- /dev/null
+++ b/test/data/enm/study-FCSV-7ad8c003-d0ee-3ea6-9374-b6e4d2f33401.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "FCSV-e30c1169-808c-3bad-a229-875911f8ad16",
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
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+    "testmat_form": null
+  },
+  "reliability": {
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+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
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+    "r_studyResultType": "experimental result",
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+  },
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+  "effects": [
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+      "conditions": {
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+      },
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+        "loQualifier": "mean",
+        "loValue": 1.085,
+        "errQualifier": "sd",
+        "errorValue": 0.642
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-7c42c2b4-dcbe-39a4-ae4e-0f0c41a7a5a5.json b/test/data/enm/study-FCSV-7c42c2b4-dcbe-39a4-ae4e-0f0c41a7a5a5.json
new file mode 100644
index 0000000..8bd32e9
--- /dev/null
+++ b/test/data/enm/study-FCSV-7c42c2b4-dcbe-39a4-ae4e-0f0c41a7a5a5.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "FCSV-e7611960-09bf-3fdc-98c5-f773f4d71ad7",
+  "owner": {
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+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Description",
+    "guideline": [
+      "Description"
+    ]
+  },
+  "parameters": {
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+    "testmat_form": null
+  },
+  "reliability": {
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+    "r_isUsedforClassification": "false",
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+  },
+  "interpretation": {
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+      "endpoint": "ATOMIC COMPOSITION",
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+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": null,
+        "Remark": null,
+        "TYPE": {
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+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "[Au]"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-7c56798c-f7cd-37d3-8a67-ead57f36db31.json b/test/data/enm/study-FCSV-7c56798c-f7cd-37d3-8a67-ead57f36db31.json
new file mode 100644
index 0000000..79066bb
--- /dev/null
+++ b/test/data/enm/study-FCSV-7c56798c-f7cd-37d3-8a67-ead57f36db31.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "FCSV-f908f459-38a9-3233-814d-c32bfd13b2cd",
+  "owner": {
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+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Description",
+    "guideline": [
+      "Description"
+    ]
+  },
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+    "Type of method": null,
+    "testmat_form": null
+  },
+  "reliability": {
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+    "r_isUsedforClassification": "false",
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+  },
+  "interpretation": {
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+      "conditions": {
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+        "DESCRIPTION": null,
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+        "Remark": null,
+        "TYPE": {
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+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "[Au]"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-80a36fc5-9a73-358c-829b-2e69eea82125.json b/test/data/enm/study-FCSV-80a36fc5-9a73-358c-829b-2e69eea82125.json
new file mode 100644
index 0000000..44dba6a
--- /dev/null
+++ b/test/data/enm/study-FCSV-80a36fc5-9a73-358c-829b-2e69eea82125.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "FCSV-facda1fb-5ce1-300f-991e-c14c1f2e743e",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-80a36fc5-9a73-358c-829b-2e69eea82125"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "ICP-AES",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Perkin-Elmer",
+    "Type of method": "ICP-AES",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
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+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "Net cell association",
+      "conditions": {
+        "Cell": "A549"
+      },
+      "result": {
+        "unit": "mL/ug(Mg)",
+        "loQualifier": "mean",
+        "loValue": 0.002,
+        "errQualifier": "sd",
+        "errorValue": 0.002
+      }
+    },
+    {
+      "endpoint": "Log2 transformed",
+      "conditions": {
+        "Cell": "A549"
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": -8.786,
+        "errQualifier": "std",
+        "errorValue": 1.283
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-815715e8-0cc8-3641-897c-4530d961cfe0.json b/test/data/enm/study-FCSV-815715e8-0cc8-3641-897c-4530d961cfe0.json
new file mode 100644
index 0000000..8977b88
--- /dev/null
+++ b/test/data/enm/study-FCSV-815715e8-0cc8-3641-897c-4530d961cfe0.json
@@ -0,0 +1,73 @@
+{
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+  "owner": {
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+    },
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "ICP-AES",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Perkin-Elmer",
+    "Type of method": "ICP-AES",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
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+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "Net cell association",
+      "conditions": {
+        "Cell": "A549"
+      },
+      "result": {
+        "unit": "mL/ug(Mg)",
+        "loQualifier": "mean",
+        "loValue": 0.017,
+        "errQualifier": "sd",
+        "errorValue": 0.013
+      }
+    },
+    {
+      "endpoint": "Log2 transformed",
+      "conditions": {
+        "Cell": "A549"
+      },
+      "result": {
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+        "loQualifier": "mean",
+        "loValue": -5.872,
+        "errQualifier": "std",
+        "errorValue": 1.113
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8619e6db-2c01-389e-b05b-e75273d18359.json b/test/data/enm/study-FCSV-8619e6db-2c01-389e-b05b-e75273d18359.json
new file mode 100644
index 0000000..310dbce
--- /dev/null
+++ b/test/data/enm/study-FCSV-8619e6db-2c01-389e-b05b-e75273d18359.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-fe601d8d-c5e0-3c1a-8c6c-185d6a8503e0",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-8619e6db-2c01-389e-b05b-e75273d18359"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
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+  },
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+  },
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+      "endpoint": "Autot (ICP-AES)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
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+        "loQualifier": "mean",
+        "loValue": 444.358,
+        "errQualifier": "sd",
+        "errorValue": 2.619
+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "cm^2",
+        "loQualifier": "mean",
+        "loValue": 9,
+        "errQualifier": "sd",
+        "errorValue": 0.0
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug/cm^2",
+        "loQualifier": "mean",
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+        "errQualifier": "sem",
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8a45dec8-a551-33cc-a7ac-7750d9f30389.json b/test/data/enm/study-FCSV-8a45dec8-a551-33cc-a7ac-7750d9f30389.json
new file mode 100644
index 0000000..f4af14e
--- /dev/null
+++ b/test/data/enm/study-FCSV-8a45dec8-a551-33cc-a7ac-7750d9f30389.json
@@ -0,0 +1,86 @@
+{
+  "uuid": "FCSV-e8ec3254-be67-3fd4-a213-2ec7f347172f",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-8a45dec8-a551-33cc-a7ac-7750d9f30389"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Absorbance.spectrophotometry.AS.",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "UV-1601PC absorbance spectrophotometer (Shimadzu)",
+    "Type of method": "Absorbance.spectrophotometry.AS.",
+    "testmat_form": null
+  },
+  "reliability": {
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+    "r_isUsedforClassification": "false",
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+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
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+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.252,
+        "errQualifier": "sd",
+        "errorValue": 0.012
+      }
+    },
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.395,
+        "errQualifier": "sd",
+        "errorValue": 0.078
+      }
+    },
+    {
+      "endpoint": "LSPR peak position (nm)",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
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+        "loQualifier": "mean",
+        "loValue": 539.3,
+        "errQualifier": "sd",
+        "errorValue": 1.08
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8b5b62c3-7fd2-3bba-b293-b7537e4971b1.json b/test/data/enm/study-FCSV-8b5b62c3-7fd2-3bba-b293-b7537e4971b1.json
new file mode 100644
index 0000000..19a76e6
--- /dev/null
+++ b/test/data/enm/study-FCSV-8b5b62c3-7fd2-3bba-b293-b7537e4971b1.json
@@ -0,0 +1,169 @@
+{
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+  "owner": {
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "DLS",
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+      "doi: 10.1021/nn406018q"
+    ]
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+    "Type of method": "DLS",
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+        "errQualifier": "sd",
+        "errorValue": 3.5
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+        "PHRASEOTHER_PERCENTILE": null,
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+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
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+        "loValue": 89.71,
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+    {
+      "endpoint": "Number Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": " ",
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
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+        "loValue": 79.04,
+        "errQualifier": "sd",
+        "errorValue": 4.66
+      }
+    },
+    {
+      "endpoint": "Number Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
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+        "errQualifier": "sd",
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+    },
+    {
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+      "conditions": {
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+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
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+    },
+    {
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+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
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+        "loValue": 95.2,
+        "errQualifier": "sd",
+        "errorValue": 1.23
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8dc5c24b-2e89-3833-b94d-920674a956a0.json b/test/data/enm/study-FCSV-8dc5c24b-2e89-3833-b94d-920674a956a0.json
new file mode 100644
index 0000000..897512d
--- /dev/null
+++ b/test/data/enm/study-FCSV-8dc5c24b-2e89-3833-b94d-920674a956a0.json
@@ -0,0 +1,77 @@
+{
+  "uuid": "FCSV-d1ff9be7-4a0c-3cb0-b3aa-c7569c00d290",
+  "owner": {
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+      "uuid": "FCSV-8dc5c24b-2e89-3833-b94d-920674a956a0"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "DLS",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "ZetaSizer Nano ZS (Malvern Instruments)",
+    "Type of method": "DLS",
+    "testmat_form": null
+  },
+  "reliability": {
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+    "r_isUsedforClassification": "false",
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+  "interpretation": {
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+        "pH": null
+      },
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+        "loValue": -21.13,
+        "errQualifier": "sd",
+        "errorValue": 1.84
+      }
+    },
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "Remark": null,
+        "pH": null
+      },
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+        "loValue": -8.35,
+        "errQualifier": "sd",
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8e1a76df-a12d-3254-ae6b-28e20153ef59.json b/test/data/enm/study-FCSV-8e1a76df-a12d-3254-ae6b-28e20153ef59.json
new file mode 100644
index 0000000..f828334
--- /dev/null
+++ b/test/data/enm/study-FCSV-8e1a76df-a12d-3254-ae6b-28e20153ef59.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-b5183d27-2e45-37c9-984a-f7f9347979e8",
+  "owner": {
+    "substance": {
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+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
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+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
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+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
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+        "errQualifier": "sd",
+        "errorValue": 125.858
+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "loQualifier": "mean",
+        "loValue": 8,
+        "errQualifier": "sd",
+        "errorValue": 1
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
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+        "loQualifier": "mean",
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8f0e4035-24d4-3a81-b20b-bd156f210616.json b/test/data/enm/study-FCSV-8f0e4035-24d4-3a81-b20b-bd156f210616.json
new file mode 100644
index 0000000..9b35ac1
--- /dev/null
+++ b/test/data/enm/study-FCSV-8f0e4035-24d4-3a81-b20b-bd156f210616.json
@@ -0,0 +1,169 @@
+{
+  "uuid": "FCSV-eb88bf67-f3e9-318f-9fa0-3b77937ffb3b",
+  "owner": {
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+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "DLS",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
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+    "Type of method": "DLS",
+    "testmat_form": null
+  },
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+  },
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+      "conditions": {
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+      },
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+        "errQualifier": "sd",
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+      }
+    },
+    {
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+      "conditions": {
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+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
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+        "loValue": 102.9,
+        "errQualifier": "sd",
+        "errorValue": 6.84
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+    },
+    {
+      "endpoint": "Volume Mean Hydrodynamic Diameter",
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+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
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+        "loValue": 70.96,
+        "errQualifier": "sd",
+        "errorValue": 1.22
+      }
+    },
+    {
+      "endpoint": "Volume Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
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+        "SEQ_NUM": null
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+        "loValue": 107.21,
+        "errQualifier": "sd",
+        "errorValue": 14.13
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+    },
+    {
+      "endpoint": "Number Mean Hydrodynamic Diameter",
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+        "MEDIUM": " ",
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+        "SEQ_NUM": null
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+        "loValue": 75.66,
+        "errQualifier": "sd",
+        "errorValue": 1.37
+      }
+    },
+    {
+      "endpoint": "Number Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
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+        "loValue": 94.83,
+        "errQualifier": "sd",
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+    },
+    {
+      "endpoint": "Intensity Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": " ",
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+        "loValue": 75.66,
+        "errQualifier": "sd",
+        "errorValue": 1.15
+      }
+    },
+    {
+      "endpoint": "Intensity Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
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+        "SEQ_NUM": null
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+        "loValue": 107.21,
+        "errQualifier": "sd",
+        "errorValue": 10.26
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8f5cd32a-3350-300b-91d0-87000ee5d7ee.json b/test/data/enm/study-FCSV-8f5cd32a-3350-300b-91d0-87000ee5d7ee.json
new file mode 100644
index 0000000..06c62b0
--- /dev/null
+++ b/test/data/enm/study-FCSV-8f5cd32a-3350-300b-91d0-87000ee5d7ee.json
@@ -0,0 +1,169 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
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+    ]
+  },
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+    "Type of method": "DLS",
+    "testmat_form": null
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+  "reliability": {
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+    {
+      "endpoint": "Intensity Mean Hydrodynamic Diameter",
+      "conditions": {
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+        "loValue": 47.5,
+        "errQualifier": "sd",
+        "errorValue": 4.13
+      }
+    },
+    {
+      "endpoint": "Intensity Mean Hydrodynamic Diameter",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)",
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
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+        "loValue": 106.7,
+        "errQualifier": "sd",
+        "errorValue": 16.5
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-8f5e6fcb-23b9-3222-aa6e-4afcbba47715.json b/test/data/enm/study-FCSV-8f5e6fcb-23b9-3222-aa6e-4afcbba47715.json
new file mode 100644
index 0000000..62e92bd
--- /dev/null
+++ b/test/data/enm/study-FCSV-8f5e6fcb-23b9-3222-aa6e-4afcbba47715.json
@@ -0,0 +1,59 @@
+{
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
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+        "loQualifier": "mean",
+        "loValue": 3.07,
+        "errQualifier": "sd",
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9043e884-a5ba-3fa6-a103-dee0c7b1b3dd.json b/test/data/enm/study-FCSV-9043e884-a5ba-3fa6-a103-dee0c7b1b3dd.json
new file mode 100644
index 0000000..6ccf7e4
--- /dev/null
+++ b/test/data/enm/study-FCSV-9043e884-a5ba-3fa6-a103-dee0c7b1b3dd.json
@@ -0,0 +1,86 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Absorbance.spectrophotometry.AS.",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "UV-1601PC absorbance spectrophotometer (Shimadzu)",
+    "Type of method": "Absorbance.spectrophotometry.AS.",
+    "testmat_form": null
+  },
+  "reliability": {
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+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
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+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.261,
+        "errQualifier": "sd",
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+      }
+    },
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
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+        "loQualifier": "mean",
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+    {
+      "endpoint": "LSPR peak position (nm)",
+      "conditions": {
+        "MEDIUM": " "
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+        "loQualifier": "mean",
+        "loValue": 540.1,
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-924a51b9-97d3-31fb-b289-52688d9d0d3c.json b/test/data/enm/study-FCSV-924a51b9-97d3-31fb-b289-52688d9d0d3c.json
new file mode 100644
index 0000000..a74dc53
--- /dev/null
+++ b/test/data/enm/study-FCSV-924a51b9-97d3-31fb-b289-52688d9d0d3c.json
@@ -0,0 +1,59 @@
+{
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+  "owner": {
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
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+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
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+    "testmat_form": null
+  },
+  "reliability": {
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+    "r_isUsedforClassification": "false",
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+      },
+      "result": {
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+        "loQualifier": "mean",
+        "loValue": 5.754,
+        "errQualifier": "sd",
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9294730f-3d55-36da-80b9-eb2df162e805.json b/test/data/enm/study-FCSV-9294730f-3d55-36da-80b9-eb2df162e805.json
new file mode 100644
index 0000000..fdae64b
--- /dev/null
+++ b/test/data/enm/study-FCSV-9294730f-3d55-36da-80b9-eb2df162e805.json
@@ -0,0 +1,56 @@
+{
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-93c29ebf-e80e-354c-893f-923385c72858.json b/test/data/enm/study-FCSV-93c29ebf-e80e-354c-893f-923385c72858.json
new file mode 100644
index 0000000..ed04fee
--- /dev/null
+++ b/test/data/enm/study-FCSV-93c29ebf-e80e-354c-893f-923385c72858.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-e90eda89-9947-3902-b951-dfd82bcc5e75",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-93c29ebf-e80e-354c-893f-923385c72858"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Autot (ICP-AES)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "nmol",
+        "loQualifier": "mean",
+        "loValue": 256.669,
+        "errQualifier": "sd",
+        "errorValue": 8.92
+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "cm^2",
+        "loQualifier": "mean",
+        "loValue": 11,
+        "errQualifier": "sd",
+        "errorValue": 0.0
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug/cm^2",
+        "loQualifier": "mean",
+        "loValue": 0.0,
+        "errQualifier": "sem",
+        "errorValue": 0.052
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9505d90b-f90b-3c94-a6cc-e4ee4c8ec46f.json b/test/data/enm/study-FCSV-9505d90b-f90b-3c94-a6cc-e4ee4c8ec46f.json
new file mode 100644
index 0000000..ac0ffd0
--- /dev/null
+++ b/test/data/enm/study-FCSV-9505d90b-f90b-3c94-a6cc-e4ee4c8ec46f.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "FCSV-faa280e4-1746-3998-b9d2-1e6b26a47346",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-9505d90b-f90b-3c94-a6cc-e4ee4c8ec46f"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "ICP-AES",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Perkin-Elmer",
+    "Type of method": "ICP-AES",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Net cell association",
+      "conditions": {
+        "Cell": "A549"
+      },
+      "result": {
+        "unit": "mL/ug(Mg)",
+        "loQualifier": "mean",
+        "loValue": 0.005,
+        "errQualifier": "sd",
+        "errorValue": 0.001
+      }
+    },
+    {
+      "endpoint": "Log2 transformed",
+      "conditions": {
+        "Cell": "A549"
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": -7.675,
+        "errQualifier": "std",
+        "errorValue": 0.321
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-98074b22-064e-3cd7-a732-f5fa3005fa73.json b/test/data/enm/study-FCSV-98074b22-064e-3cd7-a732-f5fa3005fa73.json
new file mode 100644
index 0000000..a96bd18
--- /dev/null
+++ b/test/data/enm/study-FCSV-98074b22-064e-3cd7-a732-f5fa3005fa73.json
@@ -0,0 +1,86 @@
+{
+  "uuid": "FCSV-e0c8d110-3cb0-33a6-b319-3b2ac6d4b705",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-98074b22-064e-3cd7-a732-f5fa3005fa73"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Absorbance.spectrophotometry.AS.",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "UV-1601PC absorbance spectrophotometer (Shimadzu)",
+    "Type of method": "Absorbance.spectrophotometry.AS.",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.276,
+        "errQualifier": "sd",
+        "errorValue": 0.002
+      }
+    },
+    {
+      "endpoint": "Localized Surface Plasmon Resonance (LSPR) index",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "",
+        "loQualifier": "mean",
+        "loValue": 0.534,
+        "errQualifier": "sd",
+        "errorValue": 0.147
+      }
+    },
+    {
+      "endpoint": "LSPR peak position (nm)",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": "mean",
+        "loValue": 543.47,
+        "errQualifier": "sd",
+        "errorValue": 0.21
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9964d099-d8aa-3a89-863c-d69fc921bee2.json b/test/data/enm/study-FCSV-9964d099-d8aa-3a89-863c-d69fc921bee2.json
new file mode 100644
index 0000000..71e4265
--- /dev/null
+++ b/test/data/enm/study-FCSV-9964d099-d8aa-3a89-863c-d69fc921bee2.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "FCSV-d9158cde-064f-37e7-a005-176277a768df",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-9964d099-d8aa-3a89-863c-d69fc921bee2"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
+    "Type of method": "LC MS/MS",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Spectral counts",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-99734121-3347-3d4e-9bc6-67956450b140.json b/test/data/enm/study-FCSV-99734121-3347-3d4e-9bc6-67956450b140.json
new file mode 100644
index 0000000..2c03e79
--- /dev/null
+++ b/test/data/enm/study-FCSV-99734121-3347-3d4e-9bc6-67956450b140.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "FCSV-bb647692-f1e0-3c97-9997-5b07d2c495fa",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-99734121-3347-3d4e-9bc6-67956450b140"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "CRYSTALLITE_AND_GRAIN_SIZE_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.26 Nanomaterial crystallite and grain size"
+    },
+    "endpoint": "DLS",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "ZetaSizer Nano ZS (Malvern Instruments)",
+    "Type of method": "DLS",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Polydispersity index",
+      "conditions": {
+        "MEDIUM": " "
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": "mean",
+        "loValue": 0.111,
+        "errQualifier": "sd",
+        "errorValue": 0.026
+      }
+    },
+    {
+      "endpoint": "Polydispersity index",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": "mean",
+        "loValue": 0.158,
+        "errQualifier": "sd",
+        "errorValue": 0.01
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9a56b1e5-2e22-31c4-b979-e8e9fee728c6.json b/test/data/enm/study-FCSV-9a56b1e5-2e22-31c4-b979-e8e9fee728c6.json
new file mode 100644
index 0000000..d8bdbc2
--- /dev/null
+++ b/test/data/enm/study-FCSV-9a56b1e5-2e22-31c4-b979-e8e9fee728c6.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "FCSV-fe58966e-942d-3ae1-a6d8-4a4cc46514d4",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-9a56b1e5-2e22-31c4-b979-e8e9fee728c6"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Description",
+    "guideline": [
+      "Description"
+    ]
+  },
+  "parameters": {
+    "Type of method": null,
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": null,
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "[Au]"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9b1b9ad6-e41d-3ddd-8bea-561af1fc27aa.json b/test/data/enm/study-FCSV-9b1b9ad6-e41d-3ddd-8bea-561af1fc27aa.json
new file mode 100644
index 0000000..8f0b792
--- /dev/null
+++ b/test/data/enm/study-FCSV-9b1b9ad6-e41d-3ddd-8bea-561af1fc27aa.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-c361e844-8bd1-337b-bd06-a9b55d29aaaa",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-9b1b9ad6-e41d-3ddd-8bea-561af1fc27aa"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Autot (ICP-AES)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "nmol",
+        "loQualifier": "mean",
+        "loValue": 235.665,
+        "errQualifier": "sd",
+        "errorValue": 3.452
+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "cm^2",
+        "loQualifier": "mean",
+        "loValue": 10,
+        "errQualifier": "sd",
+        "errorValue": 0.0
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug/cm^2",
+        "loQualifier": "mean",
+        "loValue": 0.0,
+        "errQualifier": "sem",
+        "errorValue": 0.057
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9bf04ec0-f6b6-30a6-8970-19a51968532e.json b/test/data/enm/study-FCSV-9bf04ec0-f6b6-30a6-8970-19a51968532e.json
new file mode 100644
index 0000000..d6fdd92
--- /dev/null
+++ b/test/data/enm/study-FCSV-9bf04ec0-f6b6-30a6-8970-19a51968532e.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "FCSV-bce0ea48-6572-331a-be1e-2e7f06857932",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-9bf04ec0-f6b6-30a6-8970-19a51968532e"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
+    "Type of method": "LC MS/MS",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Spectral counts",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-9c9a7234-a74f-326f-a134-79e004c1f687.json b/test/data/enm/study-FCSV-9c9a7234-a74f-326f-a134-79e004c1f687.json
new file mode 100644
index 0000000..efd4d87
--- /dev/null
+++ b/test/data/enm/study-FCSV-9c9a7234-a74f-326f-a134-79e004c1f687.json
@@ -0,0 +1,114 @@
+{
+  "uuid": "FCSV-e7ef4a21-1bde-3010-aa12-a018d911cc4f",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-9c9a7234-a74f-326f-a134-79e004c1f687"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "TEM",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Tecnai 20 (FEI) microscope;Tecnai 20 (FEI) microscope;AMT 16000 camera",
+    "Type of method": "TEM",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Core size",
+      "conditions": {
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
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diff --git a/test/data/enm/study-FCSV-9cc7dd73-d27f-35a0-a3f1-81a18429b76a.json b/test/data/enm/study-FCSV-9cc7dd73-d27f-35a0-a3f1-81a18429b76a.json
new file mode 100644
index 0000000..b5a96d3
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+++ b/test/data/enm/study-FCSV-9cc7dd73-d27f-35a0-a3f1-81a18429b76a.json
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+{
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index 0000000..1e14799
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+++ b/test/data/enm/study-FCSV-9df9ed76-5f94-3ecb-b661-a56e168a71bf.json
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+{
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+++ b/test/data/enm/study-FCSV-9e599ca9-9a8f-3094-a97b-3fb35b08a82a.json
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+++ b/test/data/enm/study-FCSV-a153cba3-a82d-3e3c-bcbd-335cc5155f44.json
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index 0000000..0a2ba27
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+++ b/test/data/enm/study-FCSV-a3c8dce5-07ab-3ca6-91a0-84072fc24aed.json
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+{
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diff --git a/test/data/enm/study-FCSV-a7dbc5da-6ccd-3df5-b2f1-467f625a08cb.json b/test/data/enm/study-FCSV-a7dbc5da-6ccd-3df5-b2f1-467f625a08cb.json
new file mode 100644
index 0000000..45e0d5b
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+++ b/test/data/enm/study-FCSV-a7dbc5da-6ccd-3df5-b2f1-467f625a08cb.json
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+{
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+        "MEDIUM": "Human serum (Sigma #H4522)"
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+        "loValue": 10,
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+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
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+      "result": {
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+        "loQualifier": "mean",
+        "loValue": 1,
+        "errQualifier": "sem",
+        "errorValue": 0.049
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+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-a7f3867d-85fc-33ab-8167-66b73c818f31.json b/test/data/enm/study-FCSV-a7f3867d-85fc-33ab-8167-66b73c818f31.json
new file mode 100644
index 0000000..23cdd74
--- /dev/null
+++ b/test/data/enm/study-FCSV-a7f3867d-85fc-33ab-8167-66b73c818f31.json
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+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+      "doi: 10.1021/nn406018q"
+    ]
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+    {
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diff --git a/test/data/enm/study-FCSV-aab0ef77-8a71-36d7-9185-d2f76b9e3567.json b/test/data/enm/study-FCSV-aab0ef77-8a71-36d7-9185-d2f76b9e3567.json
new file mode 100644
index 0000000..c4c7a2d
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+++ b/test/data/enm/study-FCSV-aab0ef77-8a71-36d7-9185-d2f76b9e3567.json
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+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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diff --git a/test/data/enm/study-FCSV-acbbde2e-0238-3d4c-a2f4-7629ad478e6a.json b/test/data/enm/study-FCSV-acbbde2e-0238-3d4c-a2f4-7629ad478e6a.json
new file mode 100644
index 0000000..a5d2996
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+++ b/test/data/enm/study-FCSV-acbbde2e-0238-3d4c-a2f4-7629ad478e6a.json
@@ -0,0 +1,114 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
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+    "guideline": [
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+    ]
+  },
+  "parameters": {
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+    "Type of method": "TEM",
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+    {
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diff --git a/test/data/enm/study-FCSV-ae94c9b5-ffeb-3b3b-8464-1dfe3dbde073.json b/test/data/enm/study-FCSV-ae94c9b5-ffeb-3b3b-8464-1dfe3dbde073.json
new file mode 100644
index 0000000..24cf114
--- /dev/null
+++ b/test/data/enm/study-FCSV-ae94c9b5-ffeb-3b3b-8464-1dfe3dbde073.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-fd4a2814-b9df-338b-b571-8a7500628983",
+  "owner": {
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+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
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+    "endpoint": "Ellman depletion assay",
+    "guideline": [
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+    ]
+  },
+  "parameters": {
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+    "testmat_form": null
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+  "reliability": {
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+        "loQualifier": "mean",
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+    },
+    {
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+    },
+    {
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+}
diff --git a/test/data/enm/study-FCSV-b228fc7b-c407-368a-bc1c-359c7375bb9b.json b/test/data/enm/study-FCSV-b228fc7b-c407-368a-bc1c-359c7375bb9b.json
new file mode 100644
index 0000000..312cbd1
--- /dev/null
+++ b/test/data/enm/study-FCSV-b228fc7b-c407-368a-bc1c-359c7375bb9b.json
@@ -0,0 +1,73 @@
+{
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+    },
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.26 Nanomaterial crystallite and grain size"
+    },
+    "endpoint": "DLS",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
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+    "Type of method": "DLS",
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+  },
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+      "conditions": {
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+        "loQualifier": "mean",
+        "loValue": 0.106,
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+      }
+    },
+    {
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+      "conditions": {
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+        "loValue": 0.134,
+        "errQualifier": "sd",
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+  ]
+}
diff --git a/test/data/enm/study-FCSV-b38f2b71-aa2d-3d72-af88-166a60bedee2.json b/test/data/enm/study-FCSV-b38f2b71-aa2d-3d72-af88-166a60bedee2.json
new file mode 100644
index 0000000..35cf6e6
--- /dev/null
+++ b/test/data/enm/study-FCSV-b38f2b71-aa2d-3d72-af88-166a60bedee2.json
@@ -0,0 +1,73 @@
+{
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+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "ICP-AES",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
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+  },
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+        "loQualifier": "mean",
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+        "errQualifier": "sd",
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+      }
+    },
+    {
+      "endpoint": "Log2 transformed",
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+        "loQualifier": "mean",
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+        "errQualifier": "std",
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-bc2c755f-9eee-30e3-9e98-1fbb2397c980.json b/test/data/enm/study-FCSV-bc2c755f-9eee-30e3-9e98-1fbb2397c980.json
new file mode 100644
index 0000000..48a6048
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+++ b/test/data/enm/study-FCSV-bc2c755f-9eee-30e3-9e98-1fbb2397c980.json
@@ -0,0 +1,73 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
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diff --git a/test/data/enm/study-FCSV-c4fe20ba-de05-36c2-9842-5433ce33bd72.json b/test/data/enm/study-FCSV-c4fe20ba-de05-36c2-9842-5433ce33bd72.json
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+{
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diff --git a/test/data/enm/study-FCSV-c975883b-640e-38a6-aabe-7596e3abcd95.json b/test/data/enm/study-FCSV-c975883b-640e-38a6-aabe-7596e3abcd95.json
new file mode 100644
index 0000000..c1bf39a
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+++ b/test/data/enm/study-FCSV-c975883b-640e-38a6-aabe-7596e3abcd95.json
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+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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new file mode 100644
index 0000000..e59fc13
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+++ b/test/data/enm/study-FCSV-cb2f11a0-4af8-318b-8a60-3908f45c2e65.json
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index 0000000..13c8c9a
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+{
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diff --git a/test/data/enm/study-FCSV-d1731b11-29a7-3b39-bf48-000a31d9c46b.json b/test/data/enm/study-FCSV-d1731b11-29a7-3b39-bf48-000a31d9c46b.json
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index 0000000..34f27c5
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+++ b/test/data/enm/study-FCSV-d1731b11-29a7-3b39-bf48-000a31d9c46b.json
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diff --git a/test/data/enm/study-FCSV-d63a1ea0-3194-3019-a9e0-0960e63b5819.json b/test/data/enm/study-FCSV-d63a1ea0-3194-3019-a9e0-0960e63b5819.json
new file mode 100644
index 0000000..6cac2e2
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new file mode 100644
index 0000000..8c884cd
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diff --git a/test/data/enm/study-FCSV-de6203a6-aea6-3910-8f49-598f80ab6a17.json b/test/data/enm/study-FCSV-de6203a6-aea6-3910-8f49-598f80ab6a17.json
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index 0000000..f3a5a24
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+++ b/test/data/enm/study-FCSV-de6203a6-aea6-3910-8f49-598f80ab6a17.json
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index 0000000..c69f7ee
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+++ b/test/data/enm/study-FCSV-de7a4a31-ee94-313e-bfc4-acc11f0b56ec.json
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+{
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diff --git a/test/data/enm/study-FCSV-ded649fa-97e1-3ec6-bb3d-623506389ee0.json b/test/data/enm/study-FCSV-ded649fa-97e1-3ec6-bb3d-623506389ee0.json
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index 0000000..1eb6aae
--- /dev/null
+++ b/test/data/enm/study-FCSV-ded649fa-97e1-3ec6-bb3d-623506389ee0.json
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+{
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diff --git a/test/data/enm/study-FCSV-e4b9ce55-bbeb-368b-a1d4-e591b7df742e.json b/test/data/enm/study-FCSV-e4b9ce55-bbeb-368b-a1d4-e591b7df742e.json
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+++ b/test/data/enm/study-FCSV-e4b9ce55-bbeb-368b-a1d4-e591b7df742e.json
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+{
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-ed95bb69-9fa7-3a4a-b4a4-32dd947d4d1a.json b/test/data/enm/study-FCSV-ed95bb69-9fa7-3a4a-b4a4-32dd947d4d1a.json
new file mode 100644
index 0000000..c537f45
--- /dev/null
+++ b/test/data/enm/study-FCSV-ed95bb69-9fa7-3a4a-b4a4-32dd947d4d1a.json
@@ -0,0 +1,85 @@
+{
+  "uuid": "FCSV-f1762c51-9d5c-3bf3-a581-6b7c4b0c3dcc",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-ed95bb69-9fa7-3a4a-b4a4-32dd947d4d1a"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_UNKNOWN_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.99 Physico chemical properties (other)"
+    },
+    "endpoint": "Ellman depletion assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Autot (ICP-AES)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "nmol",
+        "loQualifier": "mean",
+        "loValue": 263.69,
+        "errQualifier": "sd",
+        "errorValue": 33.967
+      }
+    },
+    {
+      "endpoint": "Total surface area (SAtot)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "cm^2",
+        "loQualifier": "mean",
+        "loValue": 11,
+        "errQualifier": "sd",
+        "errorValue": 1
+      }
+    },
+    {
+      "endpoint": "Protein density",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug/cm^2",
+        "loQualifier": "mean",
+        "loValue": 0.0,
+        "errQualifier": "sem",
+        "errorValue": 0.026
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-edc7f198-f391-328e-aa68-7d3f00b62af5.json b/test/data/enm/study-FCSV-edc7f198-f391-328e-aa68-7d3f00b62af5.json
new file mode 100644
index 0000000..332db78
--- /dev/null
+++ b/test/data/enm/study-FCSV-edc7f198-f391-328e-aa68-7d3f00b62af5.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "FCSV-d7038407-4445-3e9a-8d9b-22dfbdd6b998",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-edc7f198-f391-328e-aa68-7d3f00b62af5"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
+    "Type of method": "LC MS/MS",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Spectral counts",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "textValue": 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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-ee07f574-0b80-31db-b1f2-535f6d6626b0.json b/test/data/enm/study-FCSV-ee07f574-0b80-31db-b1f2-535f6d6626b0.json
new file mode 100644
index 0000000..002e8e0
--- /dev/null
+++ b/test/data/enm/study-FCSV-ee07f574-0b80-31db-b1f2-535f6d6626b0.json
@@ -0,0 +1,114 @@
+{
+  "uuid": "FCSV-dfe2382d-caa7-3a9f-a395-b1da0a8204f4",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-ee07f574-0b80-31db-b1f2-535f6d6626b0"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "TEM",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Tecnai 20 (FEI) microscope;Tecnai 20 (FEI) microscope;AMT 16000 camera",
+    "Type of method": "TEM",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Core size",
+      "conditions": {
+        "PHRASEOTHER_PERCENTILE": null,
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
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+        "errorValue": 6.4
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+      "result": {
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+        "loValue": 0.0
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+}
diff --git a/test/data/enm/study-FCSV-eec391e5-065c-32c1-89ca-3eb40260c1a8.json b/test/data/enm/study-FCSV-eec391e5-065c-32c1-89ca-3eb40260c1a8.json
new file mode 100644
index 0000000..587e53e
--- /dev/null
+++ b/test/data/enm/study-FCSV-eec391e5-065c-32c1-89ca-3eb40260c1a8.json
@@ -0,0 +1,63 @@
+{
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+  "owner": {
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+      "title": "4.30 Nanomaterial surface chemistry"
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+}
diff --git a/test/data/enm/study-FCSV-ef28f16c-6ab1-3d8b-b971-37c08688701f.json b/test/data/enm/study-FCSV-ef28f16c-6ab1-3d8b-b971-37c08688701f.json
new file mode 100644
index 0000000..bf3ca09
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+++ b/test/data/enm/study-FCSV-ef28f16c-6ab1-3d8b-b971-37c08688701f.json
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+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
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+        "loValue": 168.93,
+        "errQualifier": "sd",
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diff --git a/test/data/enm/study-FCSV-f0cbcba3-1cb5-3fa5-82cc-bfd9d1afa21d.json b/test/data/enm/study-FCSV-f0cbcba3-1cb5-3fa5-82cc-bfd9d1afa21d.json
new file mode 100644
index 0000000..c7f9dd6
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+++ b/test/data/enm/study-FCSV-f0cbcba3-1cb5-3fa5-82cc-bfd9d1afa21d.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "FCSV-b4898c62-ec8c-35dc-9ae5-16151428b75b",
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
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+  },
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Description",
+    "guideline": [
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+  },
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diff --git a/test/data/enm/study-FCSV-f3d54c07-7dd4-3124-b5bf-341eb9eb4e82.json b/test/data/enm/study-FCSV-f3d54c07-7dd4-3124-b5bf-341eb9eb4e82.json
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index 0000000..eca8789
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+++ b/test/data/enm/study-FCSV-f3d54c07-7dd4-3124-b5bf-341eb9eb4e82.json
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+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
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+    "category": {
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+      "title": "4.29 Nanomaterial zeta potential"
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+    "endpoint": "DLS",
+    "guideline": [
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+    ]
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+        "pH": null
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+      }
+    },
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diff --git a/test/data/enm/study-FCSV-fb5e6048-8ee1-351d-915b-d1669681357e.json b/test/data/enm/study-FCSV-fb5e6048-8ee1-351d-915b-d1669681357e.json
new file mode 100644
index 0000000..d15c557
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+++ b/test/data/enm/study-FCSV-fb5e6048-8ee1-351d-915b-d1669681357e.json
@@ -0,0 +1,73 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
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+    "endpoint": "ICP-AES",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Perkin-Elmer",
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+    "testmat_form": null
+  },
+  "reliability": {
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+        "loQualifier": "mean",
+        "loValue": 0.014,
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+    {
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+        "errQualifier": "std",
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+}
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index 0000000..c8c8468
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+++ b/test/data/enm/study-FCSV-ff7d2c8c-3d2f-316a-b890-6f9e7d88df4c.json
@@ -0,0 +1,59 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
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+    "category": {
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+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
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+        "loQualifier": "mean",
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+  ]
+}
diff --git a/test/data/enm/study-FCSV-ff7e8515-cfad-3d76-a918-d6eeab10a91d.json b/test/data/enm/study-FCSV-ff7e8515-cfad-3d76-a918-d6eeab10a91d.json
new file mode 100644
index 0000000..3a29c41
--- /dev/null
+++ b/test/data/enm/study-FCSV-ff7e8515-cfad-3d76-a918-d6eeab10a91d.json
@@ -0,0 +1,56 @@
+{
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+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
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+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
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+    "category": {
+      "code": "PROTEOMICS_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "8.100 Proteomics"
+    },
+    "endpoint": "Solution-based digestion protocol for serum protein isolates",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": "Orbitrap-Velos mass spectrometer (Thermo)",
+    "Type of method": "LC MS/MS",
+    "testmat_form": null
+  },
+  "reliability": {
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+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-FCSV-ffe19c9e-b1a1-3f38-a149-0d587fc5b172.json b/test/data/enm/study-FCSV-ffe19c9e-b1a1-3f38-a149-0d587fc5b172.json
new file mode 100644
index 0000000..49ec67b
--- /dev/null
+++ b/test/data/enm/study-FCSV-ffe19c9e-b1a1-3f38-a149-0d587fc5b172.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "FCSV-e7bb66a7-d701-3f0a-8b7b-1bd85346ef10",
+  "owner": {
+    "substance": {
+      "uuid": "FCSV-ffe19c9e-b1a1-3f38-a149-0d587fc5b172"
+    },
+    "company": {
+      "uuid": "FCSV-319611c6-e7da-3977-a5ac-eb74d49a4319",
+      "name": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv"
+    }
+  },
+  "citation": {
+    "title": "Protein Corona Fingerprinting Predicts the Cellular Interaction of Gold and Silver Nanoparticles.csv",
+    "year": "2014",
+    "owner": null
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Bicinchoninic Acid (BCA) Assay",
+    "guideline": [
+      "doi: 10.1021/nn406018q"
+    ]
+  },
+  "parameters": {
+    "Type of method": "Serum.density",
+    "testmat_form": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Total protein (BCA assay)",
+      "conditions": {
+        "MEDIUM": "Human serum (Sigma #H4522)"
+      },
+      "result": {
+        "unit": "ug",
+        "loQualifier": "mean",
+        "loValue": 0.013,
+        "errQualifier": "sd",
+        "errorValue": 0.096
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-IUC5-5f313d1f-4129-499c-abbe-ac18642e2471.json b/test/data/enm/study-IUC5-5f313d1f-4129-499c-abbe-ac18642e2471.json
new file mode 100644
index 0000000..b393b4d
--- /dev/null
+++ b/test/data/enm/study-IUC5-5f313d1f-4129-499c-abbe-ac18642e2471.json
@@ -0,0 +1,54 @@
+{
+  "uuid": "IUC5-f6eb018b-2dc5-462b-be29-a6ffce0fd4d4",
+  "owner": {
+    "substance": {
+      "uuid": "IUC5-5f313d1f-4129-499c-abbe-ac18642e2471"
+    },
+    "company": {
+      "uuid": "IUC5-354430c7-746e-450e-9722-09788eb90a29",
+      "name": "Ideaconsult Ltd. / Sofia / Bulgaria"
+    }
+  },
+  "citation": {
+    "title": "Muller, J. et al.",
+    "year": "2009",
+    "owner": ""
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "TO_CARCINOGENICITY_SECTION",
+      "term": "http://purl.enanomapper.org/onto/ENM_0000029",
+      "title": "7.7 Carcinogenicity"
+    },
+    "endpoint": "Carcinogenicity.001",
+    "guideline": [
+      null
+    ]
+  },
+  "parameters": {
+    "Doses/concentrations": "MWCNT+: 2 or 20 mg/animal;MWCNT-: 20 mg/animal;Crocidolite: 2 mg/animal",
+    "Route of administration": "intraperitoneal",
+    "Species": "rat"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": "key study",
+    "r_studyResultType": "experimental result",
+    "r_value": "2 (reliable with restrictions)"
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "",
+      "conditions": {
+      },
+      "result": {
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-002f5129-d46a-39c7-8f26-5626aec2174e.json b/test/data/enm/study-NWKI-002f5129-d46a-39c7-8f26-5626aec2174e.json
new file mode 100644
index 0000000..e838dcb
--- /dev/null
+++ b/test/data/enm/study-NWKI-002f5129-d46a-39c7-8f26-5626aec2174e.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-6da0d960-35d3-4b23-a173-f72214be91c9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-002f5129-d46a-39c7-8f26-5626aec2174e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2011.587903",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 68
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-02981dd4-b7d0-34c8-a0ab-dd19a5a40865.json b/test/data/enm/study-NWKI-02981dd4-b7d0-34c8-a0ab-dd19a5a40865.json
new file mode 100644
index 0000000..94d859a
--- /dev/null
+++ b/test/data/enm/study-NWKI-02981dd4-b7d0-34c8-a0ab-dd19a5a40865.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-e4bf86b6-5269-409e-a8ae-f551158f8cb3",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-02981dd4-b7d0-34c8-a0ab-dd19a5a40865"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe3O4"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe3O4"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "DextranCoating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Dextran"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Dextran"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0455b6e1-5203-37bb-a98b-20460acceda1.json b/test/data/enm/study-NWKI-0455b6e1-5203-37bb-a98b-20460acceda1.json
new file mode 100644
index 0000000..f647097
--- /dev/null
+++ b/test/data/enm/study-NWKI-0455b6e1-5203-37bb-a98b-20460acceda1.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-e9c11fe6-5416-4cfc-a156-9a90788b2709",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0455b6e1-5203-37bb-a98b-20460acceda1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DCY35-2DTat"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Tat"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Tat"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-04887adf-9687-3699-8054-e7e3f695e6db.json b/test/data/enm/study-NWKI-04887adf-9687-3699-8054-e7e3f695e6db.json
new file mode 100644
index 0000000..86171a2
--- /dev/null
+++ b/test/data/enm/study-NWKI-04887adf-9687-3699-8054-e7e3f695e6db.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-864c1767-bf3b-400e-8c1e-9fee4a997f6f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-04887adf-9687-3699-8054-e7e3f695e6db"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Mean Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 15
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0494174f-9fc2-3296-8ffb-4fadaceb0348.json b/test/data/enm/study-NWKI-0494174f-9fc2-3296-8ffb-4fadaceb0348.json
new file mode 100644
index 0000000..a6e0e24
--- /dev/null
+++ b/test/data/enm/study-NWKI-0494174f-9fc2-3296-8ffb-4fadaceb0348.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-e48a654a-65fd-429c-b366-efbd13e1d798",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0494174f-9fc2-3296-8ffb-4fadaceb0348"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn202116p",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 18,
+        "errorValue": 5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-04962f10-34c8-3118-953e-d40d7244209c.json b/test/data/enm/study-NWKI-04962f10-34c8-3118-953e-d40d7244209c.json
new file mode 100644
index 0000000..e01a491
--- /dev/null
+++ b/test/data/enm/study-NWKI-04962f10-34c8-3118-953e-d40d7244209c.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-b2df0522-985f-4afe-b6c1-7d044f4606b9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-04962f10-34c8-3118-953e-d40d7244209c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1039/C4FD00117F",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "Å",
+        "loQualifier": ">=",
+        "loValue": 25,
+        "upQualifier": "<=",
+        "upValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-04d6ccd0-30ad-3ffc-9f06-8b13709d3a62.json b/test/data/enm/study-NWKI-04d6ccd0-30ad-3ffc-9f06-8b13709d3a62.json
new file mode 100644
index 0000000..46abab4
--- /dev/null
+++ b/test/data/enm/study-NWKI-04d6ccd0-30ad-3ffc-9f06-8b13709d3a62.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-5a843641-8dbf-4bc3-ab49-400d74d27bab",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-04d6ccd0-30ad-3ffc-9f06-8b13709d3a62"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 25
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-05ce8604-4efc-376b-a88f-338a90465243.json b/test/data/enm/study-NWKI-05ce8604-4efc-376b-a88f-338a90465243.json
new file mode 100644
index 0000000..b08cbd0
--- /dev/null
+++ b/test/data/enm/study-NWKI-05ce8604-4efc-376b-a88f-338a90465243.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-81fdf4e1-b6a9-4129-9d10-7c001906557a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-05ce8604-4efc-376b-a88f-338a90465243"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2015.1017022",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Average Length",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Average Length",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "μm",
+        "loValue": 5.7,
+        "errorValue": 3.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-072b1631-f6f1-3f47-a4dc-723aa4eb0700.json b/test/data/enm/study-NWKI-072b1631-f6f1-3f47-a4dc-723aa4eb0700.json
new file mode 100644
index 0000000..2edf5da
--- /dev/null
+++ b/test/data/enm/study-NWKI-072b1631-f6f1-3f47-a4dc-723aa4eb0700.json
@@ -0,0 +1,93 @@
+{
+  "uuid": "NWKI-b8f2a16e-05cf-41e5-b61e-8a1be9cf8691",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-072b1631-f6f1-3f47-a4dc-723aa4eb0700"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Ag"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Ag"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "MEECoating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "MEE"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "SCCOCCO"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "MEE"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0866f605-4cfb-32a2-a704-2cf2a8d3d9a6.json b/test/data/enm/study-NWKI-0866f605-4cfb-32a2-a704-2cf2a8d3d9a6.json
new file mode 100644
index 0000000..e4dfb3b
--- /dev/null
+++ b/test/data/enm/study-NWKI-0866f605-4cfb-32a2-a704-2cf2a8d3d9a6.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-683a3a11-0be9-4fbe-a659-ce59d3de9778",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0866f605-4cfb-32a2-a704-2cf2a8d3d9a6"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 3.45
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-08b685e5-70fa-39b5-87ad-092df4a60568.json b/test/data/enm/study-NWKI-08b685e5-70fa-39b5-87ad-092df4a60568.json
new file mode 100644
index 0000000..a123273
--- /dev/null
+++ b/test/data/enm/study-NWKI-08b685e5-70fa-39b5-87ad-092df4a60568.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-d88abc39-2ed8-4835-ad25-b23982c9ad4a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-08b685e5-70fa-39b5-87ad-092df4a60568"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -56.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-09e3ff87-f9a0-34dc-955e-e8b8474fb12b.json b/test/data/enm/study-NWKI-09e3ff87-f9a0-34dc-955e-e8b8474fb12b.json
new file mode 100644
index 0000000..c2d3147
--- /dev/null
+++ b/test/data/enm/study-NWKI-09e3ff87-f9a0-34dc-955e-e8b8474fb12b.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-e96f3a5f-d334-4e90-9523-ed67d33e6f76",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-09e3ff87-f9a0-34dc-955e-e8b8474fb12b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.envpol.2008.11.004",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 285
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0a6e319e-71fc-37f7-b88d-fbda2e07ccc1.json b/test/data/enm/study-NWKI-0a6e319e-71fc-37f7-b88d-fbda2e07ccc1.json
new file mode 100644
index 0000000..fd5296e
--- /dev/null
+++ b/test/data/enm/study-NWKI-0a6e319e-71fc-37f7-b88d-fbda2e07ccc1.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f5b23bcd-efc3-4a65-ab24-d34b0d2c6e92",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0a6e319e-71fc-37f7-b88d-fbda2e07ccc1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.chemosphere.2011.04.067",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Percentage Viable Cells",
+    "guideline": [
+      "Cell number determination"
+    ]
+  },
+  "parameters": {
+    "Cell line": "HaCaT",
+    "Method type": "Cell number determination"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Percentage_Viable_Cells",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 100,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "loValue": 98
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0b16e14c-47ab-3075-afc4-0713d06aa54c.json b/test/data/enm/study-NWKI-0b16e14c-47ab-3075-afc4-0713d06aa54c.json
new file mode 100644
index 0000000..78aa0d0
--- /dev/null
+++ b/test/data/enm/study-NWKI-0b16e14c-47ab-3075-afc4-0713d06aa54c.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-ee0e465d-b789-499c-aba3-c7c6f017fec6",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0b16e14c-47ab-3075-afc4-0713d06aa54c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
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+        "Remark": null,
+        "pH": null
+      },
+      "result": {
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+        "loValue": -16.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0b663f5f-1386-3cc5-ba6b-9ff2bb39d4ff.json b/test/data/enm/study-NWKI-0b663f5f-1386-3cc5-ba6b-9ff2bb39d4ff.json
new file mode 100644
index 0000000..7ad2811
--- /dev/null
+++ b/test/data/enm/study-NWKI-0b663f5f-1386-3cc5-ba6b-9ff2bb39d4ff.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-98d15c68-20d6-4106-a239-99dcdb3d6c9c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0b663f5f-1386-3cc5-ba6b-9ff2bb39d4ff"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/gt.2011.95",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "TEM",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 13,
+        "errorValue": 11
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0bb16a46-44a8-353e-ba07-b5835e323537.json b/test/data/enm/study-NWKI-0bb16a46-44a8-353e-ba07-b5835e323537.json
new file mode 100644
index 0000000..38731d0
--- /dev/null
+++ b/test/data/enm/study-NWKI-0bb16a46-44a8-353e-ba07-b5835e323537.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-4d3b2e50-6bd6-4ebb-b8d3-ae42c20aa399",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0bb16a46-44a8-353e-ba07-b5835e323537"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 2900,
+        "errorValue": 1100
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0d6f156a-6ce8-3bac-97e3-b5d62ded7f4e.json b/test/data/enm/study-NWKI-0d6f156a-6ce8-3bac-97e3-b5d62ded7f4e.json
new file mode 100644
index 0000000..34adc8b
--- /dev/null
+++ b/test/data/enm/study-NWKI-0d6f156a-6ce8-3bac-97e3-b5d62ded7f4e.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-524de060-5f0a-498c-9a47-e2bc418e3977",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0d6f156a-6ce8-3bac-97e3-b5d62ded7f4e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn200546k",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 0.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0d776d00-aec4-3a75-9eb3-453909fc50ed.json b/test/data/enm/study-NWKI-0d776d00-aec4-3a75-9eb3-453909fc50ed.json
new file mode 100644
index 0000000..653877a
--- /dev/null
+++ b/test/data/enm/study-NWKI-0d776d00-aec4-3a75-9eb3-453909fc50ed.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-a5257051-eb42-478e-95d6-3fa1572c63f3",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0d776d00-aec4-3a75-9eb3-453909fc50ed"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 28
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0e10a982-4c8b-3f90-af19-8cd443575fc4.json b/test/data/enm/study-NWKI-0e10a982-4c8b-3f90-af19-8cd443575fc4.json
new file mode 100644
index 0000000..b048383
--- /dev/null
+++ b/test/data/enm/study-NWKI-0e10a982-4c8b-3f90-af19-8cd443575fc4.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-76fa4f88-0375-441b-ab01-f1c1a1003c83",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0e10a982-4c8b-3f90-af19-8cd443575fc4"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 40,
+        "upQualifier": "<=",
+        "upValue": 70
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-0fef8d9c-b0c4-3e41-88d0-b85cd538a796.json b/test/data/enm/study-NWKI-0fef8d9c-b0c4-3e41-88d0-b85cd538a796.json
new file mode 100644
index 0000000..19fe307
--- /dev/null
+++ b/test/data/enm/study-NWKI-0fef8d9c-b0c4-3e41-88d0-b85cd538a796.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-57d53a2d-4c4e-41db-99aa-e8fcddac22b3",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-0fef8d9c-b0c4-3e41-88d0-b85cd538a796"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.74
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-101f021f-b17b-3225-85c5-3cd2f9e5208d.json b/test/data/enm/study-NWKI-101f021f-b17b-3225-85c5-3cd2f9e5208d.json
new file mode 100644
index 0000000..1577a9b
--- /dev/null
+++ b/test/data/enm/study-NWKI-101f021f-b17b-3225-85c5-3cd2f9e5208d.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-e2383ba1-c0f4-4bc1-9050-279188cbb332",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-101f021f-b17b-3225-85c5-3cd2f9e5208d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 70,
+        "upQualifier": "<=",
+        "upValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-11ae9232-1521-31d6-9466-c902c43d94fe.json b/test/data/enm/study-NWKI-11ae9232-1521-31d6-9466-c902c43d94fe.json
new file mode 100644
index 0000000..57f3c06
--- /dev/null
+++ b/test/data/enm/study-NWKI-11ae9232-1521-31d6-9466-c902c43d94fe.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-a6d0db9c-be44-4a13-9c24-f5422885575a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-11ae9232-1521-31d6-9466-c902c43d94fe"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -9.23
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-11bd7878-7fd9-365c-8f01-a452d9c7f4ec.json b/test/data/enm/study-NWKI-11bd7878-7fd9-365c-8f01-a452d9c7f4ec.json
new file mode 100644
index 0000000..280bd5f
--- /dev/null
+++ b/test/data/enm/study-NWKI-11bd7878-7fd9-365c-8f01-a452d9c7f4ec.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-63df02d3-d55b-4a25-abfd-f73d2b958075",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-11bd7878-7fd9-365c-8f01-a452d9c7f4ec"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 14
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-13acd41a-bbf5-362c-bb6e-54c26f4c5f73.json b/test/data/enm/study-NWKI-13acd41a-bbf5-362c-bb6e-54c26f4c5f73.json
new file mode 100644
index 0000000..8736b09
--- /dev/null
+++ b/test/data/enm/study-NWKI-13acd41a-bbf5-362c-bb6e-54c26f4c5f73.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-ac60ab82-10f4-454a-908b-d3d0b94a5c3c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-13acd41a-bbf5-362c-bb6e-54c26f4c5f73"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 71.8,
+        "errorValue": 16.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-13b28611-c05b-325b-9e60-182c49b2a288.json b/test/data/enm/study-NWKI-13b28611-c05b-325b-9e60-182c49b2a288.json
new file mode 100644
index 0000000..5d1bc83
--- /dev/null
+++ b/test/data/enm/study-NWKI-13b28611-c05b-325b-9e60-182c49b2a288.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-b9ed5cb5-983c-4c0a-af8f-7af2afb81e7d",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-13b28611-c05b-325b-9e60-182c49b2a288"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es051043o",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002993_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002993",
+      "title": "BAO_0002993 Cytotoxicity Assay"
+    },
+    "endpoint": "Concentration in cell",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Concentration_in_cell",
+      "conditions": {
+        "Concentration in culture medium": {
+          "loValue": 100,
+          "unit": "ng/g"
+        },
+        "Time": {
+          "loValue": 10,
+          "unit": "m"
+        }
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-144a9226-4b93-36a9-ba2d-6b6c4903357b.json b/test/data/enm/study-NWKI-144a9226-4b93-36a9-ba2d-6b6c4903357b.json
new file mode 100644
index 0000000..f77e90b
--- /dev/null
+++ b/test/data/enm/study-NWKI-144a9226-4b93-36a9-ba2d-6b6c4903357b.json
@@ -0,0 +1,65 @@
+{
+  "uuid": "NWKI-dd496293-9be8-440a-bc07-9291cd70f0ac",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-144a9226-4b93-36a9-ba2d-6b6c4903357b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/ja309812z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "Serum": {
+          "loValue": "PBS"
+        },
+        "pH": {
+          "loValue": 7.11
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -22.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-155bb96c-2d7e-384d-b55d-45856eeda386.json b/test/data/enm/study-NWKI-155bb96c-2d7e-384d-b55d-45856eeda386.json
new file mode 100644
index 0000000..1e54fdf
--- /dev/null
+++ b/test/data/enm/study-NWKI-155bb96c-2d7e-384d-b55d-45856eeda386.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-b81bcb58-126e-40d3-b4ea-3b7d613f7e1e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-155bb96c-2d7e-384d-b55d-45856eeda386"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 15,
+        "upQualifier": "<=",
+        "upValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-175ce512-1cbd-3a84-b216-dd0f47170dc8.json b/test/data/enm/study-NWKI-175ce512-1cbd-3a84-b216-dd0f47170dc8.json
new file mode 100644
index 0000000..1ea713d
--- /dev/null
+++ b/test/data/enm/study-NWKI-175ce512-1cbd-3a84-b216-dd0f47170dc8.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-aa3dbdb7-90f5-43e1-9ece-29a5b0398e90",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-175ce512-1cbd-3a84-b216-dd0f47170dc8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 16.6,
+        "errorValue": 4.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-17c74ed1-b289-3ca1-8477-390a588cb28c.json b/test/data/enm/study-NWKI-17c74ed1-b289-3ca1-8477-390a588cb28c.json
new file mode 100644
index 0000000..371d87d
--- /dev/null
+++ b/test/data/enm/study-NWKI-17c74ed1-b289-3ca1-8477-390a588cb28c.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-fc98e120-6aeb-496f-ae14-dafbad45794a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-17c74ed1-b289-3ca1-8477-390a588cb28c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe2O3"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe2O3"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA-2DPEG"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PEG"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "PEG"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-18aebb90-aacb-3e15-b516-4d3683e9c27b.json b/test/data/enm/study-NWKI-18aebb90-aacb-3e15-b516-4d3683e9c27b.json
new file mode 100644
index 0000000..963ad90
--- /dev/null
+++ b/test/data/enm/study-NWKI-18aebb90-aacb-3e15-b516-4d3683e9c27b.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-cddd50dd-d01f-41e3-8223-bf8bb3f790d9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-18aebb90-aacb-3e15-b516-4d3683e9c27b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 40,
+        "upQualifier": "<=",
+        "upValue": 300
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-19b5dfef-0d95-3878-9075-2897e8631277.json b/test/data/enm/study-NWKI-19b5dfef-0d95-3878-9075-2897e8631277.json
new file mode 100644
index 0000000..27e8ac7
--- /dev/null
+++ b/test/data/enm/study-NWKI-19b5dfef-0d95-3878-9075-2897e8631277.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-b82cf2e9-5da7-4c35-8014-ecb154a3639b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-19b5dfef-0d95-3878-9075-2897e8631277"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3390/ijerph110908867",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "TEM",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 18,
+        "errorValue": 3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-1af17b5b-947a-3fd2-a000-cadf542dea4d.json b/test/data/enm/study-NWKI-1af17b5b-947a-3fd2-a000-cadf542dea4d.json
new file mode 100644
index 0000000..6fea173
--- /dev/null
+++ b/test/data/enm/study-NWKI-1af17b5b-947a-3fd2-a000-cadf542dea4d.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-d01537d1-37be-4bd6-904e-f63663b50e3f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-1af17b5b-947a-3fd2-a000-cadf542dea4d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 116,
+        "errorValue": 26
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-1b7ce9a9-7e13-30d8-a5c2-f8008ba3c38f.json b/test/data/enm/study-NWKI-1b7ce9a9-7e13-30d8-a5c2-f8008ba3c38f.json
new file mode 100644
index 0000000..4f72fb2
--- /dev/null
+++ b/test/data/enm/study-NWKI-1b7ce9a9-7e13-30d8-a5c2-f8008ba3c38f.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-0352bf48-fe8a-4121-a3c8-c996b2c7416b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-1b7ce9a9-7e13-30d8-a5c2-f8008ba3c38f"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
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+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -72.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-1c2fcc25-c597-3fab-b383-fb203ef4a69a.json b/test/data/enm/study-NWKI-1c2fcc25-c597-3fab-b383-fb203ef4a69a.json
new file mode 100644
index 0000000..ecd5a0b
--- /dev/null
+++ b/test/data/enm/study-NWKI-1c2fcc25-c597-3fab-b383-fb203ef4a69a.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-da126db9-3a18-4d18-8c38-71486a8dac52",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-1c2fcc25-c597-3fab-b383-fb203ef4a69a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
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+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 46.7,
+        "errorValue": 6.28
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-1d7c10cd-c2fe-3e95-94ec-2e4ee7099ec5.json b/test/data/enm/study-NWKI-1d7c10cd-c2fe-3e95-94ec-2e4ee7099ec5.json
new file mode 100644
index 0000000..d576579
--- /dev/null
+++ b/test/data/enm/study-NWKI-1d7c10cd-c2fe-3e95-94ec-2e4ee7099ec5.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-1e3b4322-d062-4d9f-805c-55c6cbb1b3a5",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-1d7c10cd-c2fe-3e95-94ec-2e4ee7099ec5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 21
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-202b322d-51c9-3d73-a049-1e4019f8ddad.json b/test/data/enm/study-NWKI-202b322d-51c9-3d73-a049-1e4019f8ddad.json
new file mode 100644
index 0000000..b215c24
--- /dev/null
+++ b/test/data/enm/study-NWKI-202b322d-51c9-3d73-a049-1e4019f8ddad.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-bb3415eb-1dba-4325-baff-417320e89afb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-202b322d-51c9-3d73-a049-1e4019f8ddad"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -53.5,
+        "errorValue": 10.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-205a198f-fcb8-3870-b99c-c6f252783613.json b/test/data/enm/study-NWKI-205a198f-fcb8-3870-b99c-c6f252783613.json
new file mode 100644
index 0000000..7ac516e
--- /dev/null
+++ b/test/data/enm/study-NWKI-205a198f-fcb8-3870-b99c-c6f252783613.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-7ab06dee-e576-4808-8c00-6a3085733458",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-205a198f-fcb8-3870-b99c-c6f252783613"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.envpol.2008.11.004",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 60
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2076c0ac-9601-33fb-a221-cd3055fd9b42.json b/test/data/enm/study-NWKI-2076c0ac-9601-33fb-a221-cd3055fd9b42.json
new file mode 100644
index 0000000..3fd131e
--- /dev/null
+++ b/test/data/enm/study-NWKI-2076c0ac-9601-33fb-a221-cd3055fd9b42.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-b5028307-f5a7-43ee-9f16-9056ef54bb8b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2076c0ac-9601-33fb-a221-cd3055fd9b42"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.envpol.2008.11.004",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 50
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-21dbebfb-695f-3ff4-b7a4-bead2b52cf13.json b/test/data/enm/study-NWKI-21dbebfb-695f-3ff4-b7a4-bead2b52cf13.json
new file mode 100644
index 0000000..f7d8945
--- /dev/null
+++ b/test/data/enm/study-NWKI-21dbebfb-695f-3ff4-b7a4-bead2b52cf13.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "NWKI-ff824497-26e7-4518-af8a-3db0dbd9caf7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-21dbebfb-695f-3ff4-b7a4-bead2b52cf13"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": -45,
+        "upQualifier": "<=",
+        "upValue": 55
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-227a54df-573f-3515-8366-6bf1f17dd715.json b/test/data/enm/study-NWKI-227a54df-573f-3515-8366-6bf1f17dd715.json
new file mode 100644
index 0000000..d3b6a63
--- /dev/null
+++ b/test/data/enm/study-NWKI-227a54df-573f-3515-8366-6bf1f17dd715.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-08d213c8-9de2-402c-ac0a-91c76b9a1541",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-227a54df-573f-3515-8366-6bf1f17dd715"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 40.1,
+        "errorValue": 12.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2390517f-b763-3850-b1b4-6e50fee63829.json b/test/data/enm/study-NWKI-2390517f-b763-3850-b1b4-6e50fee63829.json
new file mode 100644
index 0000000..512480d
--- /dev/null
+++ b/test/data/enm/study-NWKI-2390517f-b763-3850-b1b4-6e50fee63829.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-46590639-f0b8-45ae-ae2f-610b8a912cc4",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2390517f-b763-3850-b1b4-6e50fee63829"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 15,
+        "upQualifier": "<=",
+        "upValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-239abeb4-eb11-3e6e-8301-d486e21861aa.json b/test/data/enm/study-NWKI-239abeb4-eb11-3e6e-8301-d486e21861aa.json
new file mode 100644
index 0000000..76562f9
--- /dev/null
+++ b/test/data/enm/study-NWKI-239abeb4-eb11-3e6e-8301-d486e21861aa.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-7805dbcb-b630-4900-85b4-f481b61a6700",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-239abeb4-eb11-3e6e-8301-d486e21861aa"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -54.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-245fc9be-5928-354e-8fd1-ae88663923f1.json b/test/data/enm/study-NWKI-245fc9be-5928-354e-8fd1-ae88663923f1.json
new file mode 100644
index 0000000..699edd8
--- /dev/null
+++ b/test/data/enm/study-NWKI-245fc9be-5928-354e-8fd1-ae88663923f1.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-93603f88-ae1a-4819-843d-c38db4ce16c1",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-245fc9be-5928-354e-8fd1-ae88663923f1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 21
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2581f636-c16f-3680-9b3a-2bf0c8cab0b1.json b/test/data/enm/study-NWKI-2581f636-c16f-3680-9b3a-2bf0c8cab0b1.json
new file mode 100644
index 0000000..ecb3486
--- /dev/null
+++ b/test/data/enm/study-NWKI-2581f636-c16f-3680-9b3a-2bf0c8cab0b1.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-ce97c205-4d65-4d45-8c55-00427a250663",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2581f636-c16f-3680-9b3a-2bf0c8cab0b1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -54.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2944da02-ade8-38cc-b547-504f6afcf25a.json b/test/data/enm/study-NWKI-2944da02-ade8-38cc-b547-504f6afcf25a.json
new file mode 100644
index 0000000..1bf5330
--- /dev/null
+++ b/test/data/enm/study-NWKI-2944da02-ade8-38cc-b547-504f6afcf25a.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-0cb40fcb-8551-4cd3-953b-ac7e29928e05",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2944da02-ade8-38cc-b547-504f6afcf25a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2011.587903",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 21
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2a046d54-ea47-31b2-a370-e886e5a0a6bb.json b/test/data/enm/study-NWKI-2a046d54-ea47-31b2-a370-e886e5a0a6bb.json
new file mode 100644
index 0000000..7fdb358
--- /dev/null
+++ b/test/data/enm/study-NWKI-2a046d54-ea47-31b2-a370-e886e5a0a6bb.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "NWKI-e8a0ef87-e997-4b5c-8e9d-38d04fc062a5",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2a046d54-ea47-31b2-a370-e886e5a0a6bb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "BiotinCoating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "RCOOH"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "O=CO[H]"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "RCOOH"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2af8ed34-029d-3644-8327-23a596cfae0d.json b/test/data/enm/study-NWKI-2af8ed34-029d-3644-8327-23a596cfae0d.json
new file mode 100644
index 0000000..e46b0b5
--- /dev/null
+++ b/test/data/enm/study-NWKI-2af8ed34-029d-3644-8327-23a596cfae0d.json
@@ -0,0 +1,54 @@
+{
+  "uuid": "NWKI-d363ac4e-29fd-4673-9b2a-5dfc42af0fbc",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2af8ed34-029d-3644-8327-23a596cfae0d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_BOILING_SECTION",
+      "term": "http://semanticscience.org/resource/CHEMINF_000257",
+      "title": "4.3 Boiling point"
+    },
+    "endpoint": "Boiling Point",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Boiling point",
+      "conditions": {
+        "Atm. Pressure": null,
+        "Decomposition": null
+      },
+      "result": {
+        "unit": "°C",
+        "loValue": 2230
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2bd4c991-b6fb-3eb3-8a0c-794607388b79.json b/test/data/enm/study-NWKI-2bd4c991-b6fb-3eb3-8a0c-794607388b79.json
new file mode 100644
index 0000000..a27240f
--- /dev/null
+++ b/test/data/enm/study-NWKI-2bd4c991-b6fb-3eb3-8a0c-794607388b79.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-0d65feb5-c903-4fdd-8c52-033527bcace7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2bd4c991-b6fb-3eb3-8a0c-794607388b79"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 200
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-2e056907-7ac9-3b13-a599-ee10f2548d78.json b/test/data/enm/study-NWKI-2e056907-7ac9-3b13-a599-ee10f2548d78.json
new file mode 100644
index 0000000..0f8f646
--- /dev/null
+++ b/test/data/enm/study-NWKI-2e056907-7ac9-3b13-a599-ee10f2548d78.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-8418de03-f2af-4c3f-821a-6f6420a4d1a2",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-2e056907-7ac9-3b13-a599-ee10f2548d78"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1107/S0108768105030570",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 11,
+        "errorValue": 2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3068a619-f77c-3f33-848a-7b4248f6c52c.json b/test/data/enm/study-NWKI-3068a619-f77c-3f33-848a-7b4248f6c52c.json
new file mode 100644
index 0000000..41eb95e
--- /dev/null
+++ b/test/data/enm/study-NWKI-3068a619-f77c-3f33-848a-7b4248f6c52c.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-2a6c5f39-8eec-4b37-ae56-7f0b1f2fa52f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3068a619-f77c-3f33-848a-7b4248f6c52c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -48.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-30a91305-4a0d-3d7b-a399-6d5b3ee0d641.json b/test/data/enm/study-NWKI-30a91305-4a0d-3d7b-a399-6d5b3ee0d641.json
new file mode 100644
index 0000000..43a4885
--- /dev/null
+++ b/test/data/enm/study-NWKI-30a91305-4a0d-3d7b-a399-6d5b3ee0d641.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-e950a396-9e0d-43e3-a6fd-9d3b5c32f83e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-30a91305-4a0d-3d7b-a399-6d5b3ee0d641"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 29.5,
+        "errorValue": 6.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-33eda014-7b69-358a-93f0-e0ceef166a52.json b/test/data/enm/study-NWKI-33eda014-7b69-358a-93f0-e0ceef166a52.json
new file mode 100644
index 0000000..c067ed9
--- /dev/null
+++ b/test/data/enm/study-NWKI-33eda014-7b69-358a-93f0-e0ceef166a52.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-cf25b134-5092-45c7-b48f-807252da6799",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-33eda014-7b69-358a-93f0-e0ceef166a52"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -39.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3424add5-867e-3dc5-864d-36c47589024b.json b/test/data/enm/study-NWKI-3424add5-867e-3dc5-864d-36c47589024b.json
new file mode 100644
index 0000000..9b89c76
--- /dev/null
+++ b/test/data/enm/study-NWKI-3424add5-867e-3dc5-864d-36c47589024b.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-b5704215-4ac0-4d41-b185-53fe8b5747d7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3424add5-867e-3dc5-864d-36c47589024b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "SiO2"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "SiO2"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "APS_Coating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "APS"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "APS"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3481f716-18fa-39b3-aa54-4acb67877194.json b/test/data/enm/study-NWKI-3481f716-18fa-39b3-aa54-4acb67877194.json
new file mode 100644
index 0000000..a6c96f7
--- /dev/null
+++ b/test/data/enm/study-NWKI-3481f716-18fa-39b3-aa54-4acb67877194.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "NWKI-e8a71c08-fd85-4399-af9f-bc3233a8e111",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3481f716-18fa-39b3-aa54-4acb67877194"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DGlycine"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Glycine"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "C(C(=O)O)N"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Glycine"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-34a6262c-7f25-3eea-9dd0-bf1e1df40ca9.json b/test/data/enm/study-NWKI-34a6262c-7f25-3eea-9dd0-bf1e1df40ca9.json
new file mode 100644
index 0000000..94e64e1
--- /dev/null
+++ b/test/data/enm/study-NWKI-34a6262c-7f25-3eea-9dd0-bf1e1df40ca9.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "NWKI-a354f38a-4a3f-4ff0-98fe-68fdca27d5f3",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-34a6262c-7f25-3eea-9dd0-bf1e1df40ca9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn301622h",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 7
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 11,
+        "errorValue": 3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-369d200e-2bfc-392d-ae00-ceb41fabd459.json b/test/data/enm/study-NWKI-369d200e-2bfc-392d-ae00-ceb41fabd459.json
new file mode 100644
index 0000000..937ed87
--- /dev/null
+++ b/test/data/enm/study-NWKI-369d200e-2bfc-392d-ae00-ceb41fabd459.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-c645880a-bdc5-42fe-acc0-6952484b5edb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-369d200e-2bfc-392d-ae00-ceb41fabd459"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn200546k",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 1.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-37a99dad-2a53-3076-b21f-d078b89fb4fb.json b/test/data/enm/study-NWKI-37a99dad-2a53-3076-b21f-d078b89fb4fb.json
new file mode 100644
index 0000000..24c9abe
--- /dev/null
+++ b/test/data/enm/study-NWKI-37a99dad-2a53-3076-b21f-d078b89fb4fb.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "NWKI-bf2c9635-9a3d-4781-bca7-3c1f86ea0cba",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-37a99dad-2a53-3076-b21f-d078b89fb4fb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn301622h",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 7
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 12,
+        "errorValue": 2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-37e2b8ec-0e57-3ed8-9afc-93a3030ee25f.json b/test/data/enm/study-NWKI-37e2b8ec-0e57-3ed8-9afc-93a3030ee25f.json
new file mode 100644
index 0000000..c081ea0
--- /dev/null
+++ b/test/data/enm/study-NWKI-37e2b8ec-0e57-3ed8-9afc-93a3030ee25f.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-5a65ec58-f00b-48b5-906b-d3eebf6d34b8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-37e2b8ec-0e57-3ed8-9afc-93a3030ee25f"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 60.6,
+        "errorValue": 15.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-395bf212-b710-3385-9c23-715a7055b015.json b/test/data/enm/study-NWKI-395bf212-b710-3385-9c23-715a7055b015.json
new file mode 100644
index 0000000..fcd5501
--- /dev/null
+++ b/test/data/enm/study-NWKI-395bf212-b710-3385-9c23-715a7055b015.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-f5ca7f44-a8bf-4334-b09e-5ef6d04d3dac",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-395bf212-b710-3385-9c23-715a7055b015"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "2009",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002167_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002167",
+      "title": "BAO_0002167 Genotoxicity Assay"
+    },
+    "endpoint": "DNA in Tail",
+    "guideline": [
+      "Fpg-2Dmodified Comet Assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "Caco-2 cell",
+    "Method type": "Fpg-2Dmodified Comet Assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "DNA_in_Tail",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 20,
+          "unit": "ug/cm^2"
+        },
+        "FPG Content": {
+          "loValue": 100
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3a3b2bcd-8284-37dc-a619-56ffbd7ebd68.json b/test/data/enm/study-NWKI-3a3b2bcd-8284-37dc-a619-56ffbd7ebd68.json
new file mode 100644
index 0000000..fd89d74
--- /dev/null
+++ b/test/data/enm/study-NWKI-3a3b2bcd-8284-37dc-a619-56ffbd7ebd68.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-950a3601-d327-49a5-aaa2-f30b2e8f3341",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3a3b2bcd-8284-37dc-a619-56ffbd7ebd68"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn2021056",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 27.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3b09fdd1-3024-3be3-b1c6-332b44f75f99.json b/test/data/enm/study-NWKI-3b09fdd1-3024-3be3-b1c6-332b44f75f99.json
new file mode 100644
index 0000000..5dabca5
--- /dev/null
+++ b/test/data/enm/study-NWKI-3b09fdd1-3024-3be3-b1c6-332b44f75f99.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-c7f84ccb-8474-4b7c-8674-aa196eac6741",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3b09fdd1-3024-3be3-b1c6-332b44f75f99"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 15,
+        "upQualifier": "<=",
+        "upValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3bbccc84-019f-369f-ba70-490fcfde4423.json b/test/data/enm/study-NWKI-3bbccc84-019f-369f-ba70-490fcfde4423.json
new file mode 100644
index 0000000..862014e
--- /dev/null
+++ b/test/data/enm/study-NWKI-3bbccc84-019f-369f-ba70-490fcfde4423.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-7f8d8e04-e3c9-4ea4-9df4-7b57920649f6",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3bbccc84-019f-369f-ba70-490fcfde4423"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 2.01
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3c8c8bb2-416f-3bff-862a-8433538cd4c5.json b/test/data/enm/study-NWKI-3c8c8bb2-416f-3bff-862a-8433538cd4c5.json
new file mode 100644
index 0000000..30840dc
--- /dev/null
+++ b/test/data/enm/study-NWKI-3c8c8bb2-416f-3bff-862a-8433538cd4c5.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-97d7329d-ede3-47f2-bae7-88072c73ac5e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3c8c8bb2-416f-3bff-862a-8433538cd4c5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 0.0,
+        "upQualifier": "<=",
+        "upValue": 25
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3ccb7313-0905-322a-ac62-09adb667bc0f.json b/test/data/enm/study-NWKI-3ccb7313-0905-322a-ac62-09adb667bc0f.json
new file mode 100644
index 0000000..f51556d
--- /dev/null
+++ b/test/data/enm/study-NWKI-3ccb7313-0905-322a-ac62-09adb667bc0f.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-eb7ec2b5-8964-4b78-88ac-4095399c8b33",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3ccb7313-0905-322a-ac62-09adb667bc0f"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 300
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3ccff23c-b3d6-3614-aef4-4324be42804b.json b/test/data/enm/study-NWKI-3ccff23c-b3d6-3614-aef4-4324be42804b.json
new file mode 100644
index 0000000..63c4995
--- /dev/null
+++ b/test/data/enm/study-NWKI-3ccff23c-b3d6-3614-aef4-4324be42804b.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-26e89dc8-26c3-48a9-ad65-a91dec14ef56",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3ccff23c-b3d6-3614-aef4-4324be42804b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 12.6,
+        "errorValue": 4.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3d8aaa66-97d9-351b-9771-691300d5e97c.json b/test/data/enm/study-NWKI-3d8aaa66-97d9-351b-9771-691300d5e97c.json
new file mode 100644
index 0000000..31da2d2
--- /dev/null
+++ b/test/data/enm/study-NWKI-3d8aaa66-97d9-351b-9771-691300d5e97c.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-d67ffc65-30bd-4fa7-8a1a-c2f9560de597",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3d8aaa66-97d9-351b-9771-691300d5e97c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "Shape",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Anatase"
+  },
+  "effects": [
+    {
+      "endpoint": "SHAPE",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Anatase"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3db8eb74-b206-31ad-8c1b-3569703c47cb.json b/test/data/enm/study-NWKI-3db8eb74-b206-31ad-8c1b-3569703c47cb.json
new file mode 100644
index 0000000..30e5d1f
--- /dev/null
+++ b/test/data/enm/study-NWKI-3db8eb74-b206-31ad-8c1b-3569703c47cb.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-bcf835c5-7b6d-4dd4-99a9-318d9b5b4e90",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3db8eb74-b206-31ad-8c1b-3569703c47cb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3762/bjnano.5.151",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "TEM",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 109.8,
+        "errorValue": 34.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3e42f6e5-635a-3f1e-a51a-39ce26751ec9.json b/test/data/enm/study-NWKI-3e42f6e5-635a-3f1e-a51a-39ce26751ec9.json
new file mode 100644
index 0000000..51cb2c0
--- /dev/null
+++ b/test/data/enm/study-NWKI-3e42f6e5-635a-3f1e-a51a-39ce26751ec9.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-ff65f97b-b115-4b5e-982e-66757a1be5ef",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3e42f6e5-635a-3f1e-a51a-39ce26751ec9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 2.82
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3e6392b9-35fb-39ad-ad98-f6d6de37659a.json b/test/data/enm/study-NWKI-3e6392b9-35fb-39ad-ad98-f6d6de37659a.json
new file mode 100644
index 0000000..08fa8d3
--- /dev/null
+++ b/test/data/enm/study-NWKI-3e6392b9-35fb-39ad-ad98-f6d6de37659a.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-7cc65f18-bc91-4048-b73c-5de3962794a2",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3e6392b9-35fb-39ad-ad98-f6d6de37659a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -52.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-3fb9be70-8c15-3b78-94e7-5c3c88799818.json b/test/data/enm/study-NWKI-3fb9be70-8c15-3b78-94e7-5c3c88799818.json
new file mode 100644
index 0000000..c527736
--- /dev/null
+++ b/test/data/enm/study-NWKI-3fb9be70-8c15-3b78-94e7-5c3c88799818.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-f96d66db-233b-4b6f-906f-302f75470d03",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-3fb9be70-8c15-3b78-94e7-5c3c88799818"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-417f0133-8f2c-3255-bdcf-7d71ac295d00.json b/test/data/enm/study-NWKI-417f0133-8f2c-3255-bdcf-7d71ac295d00.json
new file mode 100644
index 0000000..4ee19d0
--- /dev/null
+++ b/test/data/enm/study-NWKI-417f0133-8f2c-3255-bdcf-7d71ac295d00.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f5e2ff69-a30f-4e11-b174-919b40b307a3",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-417f0133-8f2c-3255-bdcf-7d71ac295d00"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 100,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-41e63d70-d7c0-3bd2-9a65-e99dcdedb1a5.json b/test/data/enm/study-NWKI-41e63d70-d7c0-3bd2-9a65-e99dcdedb1a5.json
new file mode 100644
index 0000000..e72a4ec
--- /dev/null
+++ b/test/data/enm/study-NWKI-41e63d70-d7c0-3bd2-9a65-e99dcdedb1a5.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-cb6f500d-8d1c-4196-94b8-1a8b9bcd30f6",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-41e63d70-d7c0-3bd2-9a65-e99dcdedb1a5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -51.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4358aa69-dec1-387a-b7ea-2238198ccdff.json b/test/data/enm/study-NWKI-4358aa69-dec1-387a-b7ea-2238198ccdff.json
new file mode 100644
index 0000000..5ca4601
--- /dev/null
+++ b/test/data/enm/study-NWKI-4358aa69-dec1-387a-b7ea-2238198ccdff.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-f0c20fa3-8c0b-4395-b633-0116213e3792",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4358aa69-dec1-387a-b7ea-2238198ccdff"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/ja309812z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null,
+        "Serum": {
+          "loValue": "cMEM"
+        }
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 166
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-438d1468-d5d7-3977-9dab-15a3a05add38.json b/test/data/enm/study-NWKI-438d1468-d5d7-3977-9dab-15a3a05add38.json
new file mode 100644
index 0000000..70f71be
--- /dev/null
+++ b/test/data/enm/study-NWKI-438d1468-d5d7-3977-9dab-15a3a05add38.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-c7a9d6f8-0d62-4aa7-b9e4-611475a74e48",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-438d1468-d5d7-3977-9dab-15a3a05add38"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-44b3fa7b-1667-3f4a-9e31-7a5202320cf3.json b/test/data/enm/study-NWKI-44b3fa7b-1667-3f4a-9e31-7a5202320cf3.json
new file mode 100644
index 0000000..7a6c478
--- /dev/null
+++ b/test/data/enm/study-NWKI-44b3fa7b-1667-3f4a-9e31-7a5202320cf3.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-e45646a0-dfc1-45c9-84b2-d7ce19efcc2f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-44b3fa7b-1667-3f4a-9e31-7a5202320cf3"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -48.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4551e0f7-e515-3cdb-a099-c2b99b04883d.json b/test/data/enm/study-NWKI-4551e0f7-e515-3cdb-a099-c2b99b04883d.json
new file mode 100644
index 0000000..1f76861
--- /dev/null
+++ b/test/data/enm/study-NWKI-4551e0f7-e515-3cdb-a099-c2b99b04883d.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-9f4fcd1f-7ab6-4993-9092-f2a266d44bcd",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4551e0f7-e515-3cdb-a099-c2b99b04883d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 15,
+        "upQualifier": "<=",
+        "upValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-458c2d5a-53f0-3c65-81eb-6fb5d128db59.json b/test/data/enm/study-NWKI-458c2d5a-53f0-3c65-81eb-6fb5d128db59.json
new file mode 100644
index 0000000..1a6f8c0
--- /dev/null
+++ b/test/data/enm/study-NWKI-458c2d5a-53f0-3c65-81eb-6fb5d128db59.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-ad5f29a5-b5f3-4195-8acf-3e90ea113eeb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-458c2d5a-53f0-3c65-81eb-6fb5d128db59"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 6.2,
+        "errorValue": 0.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-45fc0568-39f3-33f2-bd68-f953733c0c96.json b/test/data/enm/study-NWKI-45fc0568-39f3-33f2-bd68-f953733c0c96.json
new file mode 100644
index 0000000..f5c86e4
--- /dev/null
+++ b/test/data/enm/study-NWKI-45fc0568-39f3-33f2-bd68-f953733c0c96.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-c8fbf5fb-579e-4848-9157-f0ab7864a30d",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-45fc0568-39f3-33f2-bd68-f953733c0c96"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 62.4,
+        "errorValue": 13.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-473ed1d8-ae5a-3c80-b3f7-50dbc4fd9a3b.json b/test/data/enm/study-NWKI-473ed1d8-ae5a-3c80-b3f7-50dbc4fd9a3b.json
new file mode 100644
index 0000000..361c216
--- /dev/null
+++ b/test/data/enm/study-NWKI-473ed1d8-ae5a-3c80-b3f7-50dbc4fd9a3b.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-a30dd268-00ac-4e0c-a7e4-b96903513235",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-473ed1d8-ae5a-3c80-b3f7-50dbc4fd9a3b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 9.48,
+        "errorValue": 1.26
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-47d254de-8242-3374-9ed3-085227d473cc.json b/test/data/enm/study-NWKI-47d254de-8242-3374-9ed3-085227d473cc.json
new file mode 100644
index 0000000..1470390
--- /dev/null
+++ b/test/data/enm/study-NWKI-47d254de-8242-3374-9ed3-085227d473cc.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-d9b323b6-cc7b-4d29-a03b-aad51389d92b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-47d254de-8242-3374-9ed3-085227d473cc"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA-2DPEG-2DED-2DAminoSPARK680"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "ED"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "ED"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4832de65-5a92-3849-8061-729a2d83017e.json b/test/data/enm/study-NWKI-4832de65-5a92-3849-8061-729a2d83017e.json
new file mode 100644
index 0000000..1889acd
--- /dev/null
+++ b/test/data/enm/study-NWKI-4832de65-5a92-3849-8061-729a2d83017e.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-d32092e6-7b57-448b-b8d1-2c6b2eaf9e28",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4832de65-5a92-3849-8061-729a2d83017e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Mean Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 38
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4b4cb369-8202-3483-9220-553e433c9159.json b/test/data/enm/study-NWKI-4b4cb369-8202-3483-9220-553e433c9159.json
new file mode 100644
index 0000000..963e531
--- /dev/null
+++ b/test/data/enm/study-NWKI-4b4cb369-8202-3483-9220-553e433c9159.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-bd297302-a9f6-4bc6-ab88-1ba058356fd3",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4b4cb369-8202-3483-9220-553e433c9159"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 31
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4beee533-65e4-364a-adb7-7a520180de61.json b/test/data/enm/study-NWKI-4beee533-65e4-364a-adb7-7a520180de61.json
new file mode 100644
index 0000000..e0ca260
--- /dev/null
+++ b/test/data/enm/study-NWKI-4beee533-65e4-364a-adb7-7a520180de61.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-ea31baba-b673-423e-a37c-4b9d21494550",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4beee533-65e4-364a-adb7-7a520180de61"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "ZnO"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "ZnO"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Triethoxycaprylsilane_Coating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Triethoxycaprylsilane"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Triethoxycaprylsilane"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4dd2cfcb-0daf-33f7-ba67-f629e3019271.json b/test/data/enm/study-NWKI-4dd2cfcb-0daf-33f7-ba67-f629e3019271.json
new file mode 100644
index 0000000..e6b0e45
--- /dev/null
+++ b/test/data/enm/study-NWKI-4dd2cfcb-0daf-33f7-ba67-f629e3019271.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-e140d5a5-9f7f-455e-a1c9-82ae07a4ba3e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4dd2cfcb-0daf-33f7-ba67-f629e3019271"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3762/bjnano.5.151",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "TEM",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 30.6,
+        "errorValue": 6.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4e021275-ae4e-3d24-bdb8-40c6d8d9d6fc.json b/test/data/enm/study-NWKI-4e021275-ae4e-3d24-bdb8-40c6d8d9d6fc.json
new file mode 100644
index 0000000..248bb9d
--- /dev/null
+++ b/test/data/enm/study-NWKI-4e021275-ae4e-3d24-bdb8-40c6d8d9d6fc.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-c4fd9f71-f95f-4a63-b75b-0e545eeb6199",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4e021275-ae4e-3d24-bdb8-40c6d8d9d6fc"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 44
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4e62b022-02b9-35e7-a653-7ee317f54ae8.json b/test/data/enm/study-NWKI-4e62b022-02b9-35e7-a653-7ee317f54ae8.json
new file mode 100644
index 0000000..aac5298
--- /dev/null
+++ b/test/data/enm/study-NWKI-4e62b022-02b9-35e7-a653-7ee317f54ae8.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-81217635-d689-47e3-ac04-edd53506bff8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4e62b022-02b9-35e7-a653-7ee317f54ae8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3390/ijerph110908867",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "TEM",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 9,
+        "errorValue": 3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4f1a3729-4a88-31bc-abca-7eb6503a73d4.json b/test/data/enm/study-NWKI-4f1a3729-4a88-31bc-abca-7eb6503a73d4.json
new file mode 100644
index 0000000..34fce21
--- /dev/null
+++ b/test/data/enm/study-NWKI-4f1a3729-4a88-31bc-abca-7eb6503a73d4.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-4bb154cc-48e2-4286-bdb0-dd65cfff3bc3",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4f1a3729-4a88-31bc-abca-7eb6503a73d4"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 220
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4f91db77-4cd0-3482-b989-571d2a9a4228.json b/test/data/enm/study-NWKI-4f91db77-4cd0-3482-b989-571d2a9a4228.json
new file mode 100644
index 0000000..8934997
--- /dev/null
+++ b/test/data/enm/study-NWKI-4f91db77-4cd0-3482-b989-571d2a9a4228.json
@@ -0,0 +1,93 @@
+{
+  "uuid": "NWKI-9ae54803-8808-4fe9-8036-2539cf8d2e0e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4f91db77-4cd0-3482-b989-571d2a9a4228"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Ag"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Ag"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "MESCoating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "MES"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "SCCS(=O)(=O)[O-].[Na+]"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "MES"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-4fa19c49-f3b1-3e34-8aa4-3da258933bf8.json b/test/data/enm/study-NWKI-4fa19c49-f3b1-3e34-8aa4-3da258933bf8.json
new file mode 100644
index 0000000..3e57dd7
--- /dev/null
+++ b/test/data/enm/study-NWKI-4fa19c49-f3b1-3e34-8aa4-3da258933bf8.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-e536a891-5802-420c-8cfa-c23251726ee4",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-4fa19c49-f3b1-3e34-8aa4-3da258933bf8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 12.8,
+        "errorValue": 3.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-506de59a-ae92-361b-a934-0fdfa41101c0.json b/test/data/enm/study-NWKI-506de59a-ae92-361b-a934-0fdfa41101c0.json
new file mode 100644
index 0000000..2d503fe
--- /dev/null
+++ b/test/data/enm/study-NWKI-506de59a-ae92-361b-a934-0fdfa41101c0.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-e5f9a72e-5f64-4fa9-b350-a64ec8ada63f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-506de59a-ae92-361b-a934-0fdfa41101c0"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -6.11
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-509caa0e-0b8c-30e9-9592-48c6a83fe4ec.json b/test/data/enm/study-NWKI-509caa0e-0b8c-30e9-9592-48c6a83fe4ec.json
new file mode 100644
index 0000000..8b0456d
--- /dev/null
+++ b/test/data/enm/study-NWKI-509caa0e-0b8c-30e9-9592-48c6a83fe4ec.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-f4b25191-fdc0-42ad-a381-8d7a2d240077",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-509caa0e-0b8c-30e9-9592-48c6a83fe4ec"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5136670d-2925-31d0-8e12-811f8d67677f.json b/test/data/enm/study-NWKI-5136670d-2925-31d0-8e12-811f8d67677f.json
new file mode 100644
index 0000000..15cd41f
--- /dev/null
+++ b/test/data/enm/study-NWKI-5136670d-2925-31d0-8e12-811f8d67677f.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-a2790aa9-23c6-4a18-b8a5-6153f6d03feb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5136670d-2925-31d0-8e12-811f8d67677f"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 282,
+        "errorValue": 62
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5172b34a-a6f6-398f-ace6-1d30e6bc9efa.json b/test/data/enm/study-NWKI-5172b34a-a6f6-398f-ace6-1d30e6bc9efa.json
new file mode 100644
index 0000000..27431f9
--- /dev/null
+++ b/test/data/enm/study-NWKI-5172b34a-a6f6-398f-ace6-1d30e6bc9efa.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-f7eebb4f-c892-4007-a01e-e2bad43b52c4",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5172b34a-a6f6-398f-ace6-1d30e6bc9efa"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe3O4"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe3O4"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DNH2"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Cross-2Dlinked_dextran"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Cross-2Dlinked_dextran"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-52e8adb0-6aba-3e7f-bc0c-85cb36c394a2.json b/test/data/enm/study-NWKI-52e8adb0-6aba-3e7f-bc0c-85cb36c394a2.json
new file mode 100644
index 0000000..b589dfe
--- /dev/null
+++ b/test/data/enm/study-NWKI-52e8adb0-6aba-3e7f-bc0c-85cb36c394a2.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-879cace7-705a-4cc6-a1ac-db71577547e7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-52e8adb0-6aba-3e7f-bc0c-85cb36c394a2"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 0.0,
+        "upQualifier": "<=",
+        "upValue": 10
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-52edeff5-900d-3f5a-86ba-550e9b368239.json b/test/data/enm/study-NWKI-52edeff5-900d-3f5a-86ba-550e9b368239.json
new file mode 100644
index 0000000..27959e0
--- /dev/null
+++ b/test/data/enm/study-NWKI-52edeff5-900d-3f5a-86ba-550e9b368239.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-ef4230e8-9345-4e2d-8ff8-ab9347a680f4",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-52edeff5-900d-3f5a-86ba-550e9b368239"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 5,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-535c1a8b-71d0-3388-aaf5-e3a5c86510cb.json b/test/data/enm/study-NWKI-535c1a8b-71d0-3388-aaf5-e3a5c86510cb.json
new file mode 100644
index 0000000..2d7aa68
--- /dev/null
+++ b/test/data/enm/study-NWKI-535c1a8b-71d0-3388-aaf5-e3a5c86510cb.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-752659af-c93e-48c9-a3ba-84063d1c76d0",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-535c1a8b-71d0-3388-aaf5-e3a5c86510cb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -59.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-536c91ba-6cf8-3808-b611-f7d5830f5ed8.json b/test/data/enm/study-NWKI-536c91ba-6cf8-3808-b611-f7d5830f5ed8.json
new file mode 100644
index 0000000..ae799cc
--- /dev/null
+++ b/test/data/enm/study-NWKI-536c91ba-6cf8-3808-b611-f7d5830f5ed8.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-2575d442-a40e-444e-8653-bcb555e99baa",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-536c91ba-6cf8-3808-b611-f7d5830f5ed8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2011.587903",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 24
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5454d5cb-1033-3d6f-a31e-038752525533.json b/test/data/enm/study-NWKI-5454d5cb-1033-3d6f-a31e-038752525533.json
new file mode 100644
index 0000000..e145651
--- /dev/null
+++ b/test/data/enm/study-NWKI-5454d5cb-1033-3d6f-a31e-038752525533.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-d9c32176-7528-4879-8bc4-930c8e965db1",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5454d5cb-1033-3d6f-a31e-038752525533"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 200
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b.json b/test/data/enm/study-NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b.json
new file mode 100644
index 0000000..27d1153
--- /dev/null
+++ b/test/data/enm/study-NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b.json
@@ -0,0 +1,93 @@
+{
+  "uuid": "NWKI-75c8848d-c75a-4628-a3e6-ebdac796acf9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-566286ef-03eb-317a-8d9d-24fffefefc0b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Ag"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Ag"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "MESCoating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "MES"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "SCCS(=O)(=O)[O-].[Na+]"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "MES"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0.json b/test/data/enm/study-NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0.json
new file mode 100644
index 0000000..11f8894
--- /dev/null
+++ b/test/data/enm/study-NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-b31df475-cec5-45fb-a010-e2af8524f5bd",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-56d49cc3-4a76-354b-9a77-4b2ecb2dbef0"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "2009",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Metabolic Activity",
+    "guideline": [
+      "Tetrazolium Salt Cleavage"
+    ]
+  },
+  "parameters": {
+    "Cell line": "Caco-2 cell",
+    "Method type": "Tetrazolium Salt Cleavage"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Metabolic_Activity",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 20,
+          "unit": "ug/cm^2"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-57943982-0642-388c-be22-f1770d3b620c.json b/test/data/enm/study-NWKI-57943982-0642-388c-be22-f1770d3b620c.json
new file mode 100644
index 0000000..980fcf6
--- /dev/null
+++ b/test/data/enm/study-NWKI-57943982-0642-388c-be22-f1770d3b620c.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-ee6e915f-27fe-47f6-b0a2-b6a34d63360c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-57943982-0642-388c-be22-f1770d3b620c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 66
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-57a03b07-0bb6-306c-ba30-71d5bc626385.json b/test/data/enm/study-NWKI-57a03b07-0bb6-306c-ba30-71d5bc626385.json
new file mode 100644
index 0000000..a62856c
--- /dev/null
+++ b/test/data/enm/study-NWKI-57a03b07-0bb6-306c-ba30-71d5bc626385.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-f618f090-2592-422e-834b-c043e330167f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-57a03b07-0bb6-306c-ba30-71d5bc626385"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.soilbio.2013.01.016",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 20,
+        "upQualifier": "<=",
+        "upValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5a049bb7-380d-3c89-9c39-f1310ed7b09d.json b/test/data/enm/study-NWKI-5a049bb7-380d-3c89-9c39-f1310ed7b09d.json
new file mode 100644
index 0000000..1d942fb
--- /dev/null
+++ b/test/data/enm/study-NWKI-5a049bb7-380d-3c89-9c39-f1310ed7b09d.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-ac38b52d-7f93-49b6-be77-66198edb7492",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5a049bb7-380d-3c89-9c39-f1310ed7b09d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 5.3,
+        "errorValue": 0.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5a6518a3-ff8d-374b-a070-92a1addafdd7.json b/test/data/enm/study-NWKI-5a6518a3-ff8d-374b-a070-92a1addafdd7.json
new file mode 100644
index 0000000..990d938
--- /dev/null
+++ b/test/data/enm/study-NWKI-5a6518a3-ff8d-374b-a070-92a1addafdd7.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-868e0d65-60b4-4614-85ed-8c2d7e5590cc",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5a6518a3-ff8d-374b-a070-92a1addafdd7"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 59.6,
+        "errorValue": 19
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5adec23a-ab6a-350e-baec-cd088a4667d5.json b/test/data/enm/study-NWKI-5adec23a-ab6a-350e-baec-cd088a4667d5.json
new file mode 100644
index 0000000..6e24069
--- /dev/null
+++ b/test/data/enm/study-NWKI-5adec23a-ab6a-350e-baec-cd088a4667d5.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "NWKI-e8fcf88e-c52d-4be4-992d-fd731ffc5144",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5adec23a-ab6a-350e-baec-cd088a4667d5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "COOH-2DAmphPolymer"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "COOH"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "O=CO[H]"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "COOH"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa.json b/test/data/enm/study-NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa.json
new file mode 100644
index 0000000..f146d6a
--- /dev/null
+++ b/test/data/enm/study-NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-d7937308-6dab-41ce-a8fc-7752c77293a2",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5ae4ae3d-db28-3647-9a7a-0c2e3d8076aa"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -6.05
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5e5ed57f-33d3-39bb-9511-3604a0babf5e.json b/test/data/enm/study-NWKI-5e5ed57f-33d3-39bb-9511-3604a0babf5e.json
new file mode 100644
index 0000000..67738f0
--- /dev/null
+++ b/test/data/enm/study-NWKI-5e5ed57f-33d3-39bb-9511-3604a0babf5e.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-d7aafa0b-c408-44e1-b288-9a479cb3dca1",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5e5ed57f-33d3-39bb-9511-3604a0babf5e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn2021056",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 12,
+        "errorValue": 2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5eff14ab-be8b-3f57-96fc-7ed09e7546b5.json b/test/data/enm/study-NWKI-5eff14ab-be8b-3f57-96fc-7ed09e7546b5.json
new file mode 100644
index 0000000..c6ecf72
--- /dev/null
+++ b/test/data/enm/study-NWKI-5eff14ab-be8b-3f57-96fc-7ed09e7546b5.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-07bdb9ac-d6b8-49ed-9e70-c0a4e689b500",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5eff14ab-be8b-3f57-96fc-7ed09e7546b5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-5f88a526-3e3f-3da5-8082-8d1da0cdfefa.json b/test/data/enm/study-NWKI-5f88a526-3e3f-3da5-8082-8d1da0cdfefa.json
new file mode 100644
index 0000000..cbc8c02
--- /dev/null
+++ b/test/data/enm/study-NWKI-5f88a526-3e3f-3da5-8082-8d1da0cdfefa.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-c8207d31-f8f9-48db-ba39-15668b625d56",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-5f88a526-3e3f-3da5-8082-8d1da0cdfefa"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 42
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-605f4f43-028b-3a42-ae94-9852a9f6f5f8.json b/test/data/enm/study-NWKI-605f4f43-028b-3a42-ae94-9852a9f6f5f8.json
new file mode 100644
index 0000000..ace4bbb
--- /dev/null
+++ b/test/data/enm/study-NWKI-605f4f43-028b-3a42-ae94-9852a9f6f5f8.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "NWKI-e9ae71d3-fd50-4f4e-bef9-9063b1f1297d",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-605f4f43-028b-3a42-ae94-9852a9f6f5f8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn301622h",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 7
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -48,
+        "errorValue": 2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-61515bd0-5a80-3428-a093-01be1d677862.json b/test/data/enm/study-NWKI-61515bd0-5a80-3428-a093-01be1d677862.json
new file mode 100644
index 0000000..e27010b
--- /dev/null
+++ b/test/data/enm/study-NWKI-61515bd0-5a80-3428-a093-01be1d677862.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-ec8a860b-5c0c-4f89-a591-eacdf9757dcd",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-61515bd0-5a80-3428-a093-01be1d677862"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 112,
+        "errorValue": 10
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-61c73e33-28ab-3387-8cdf-cb7c135fb06c.json b/test/data/enm/study-NWKI-61c73e33-28ab-3387-8cdf-cb7c135fb06c.json
new file mode 100644
index 0000000..bfff265
--- /dev/null
+++ b/test/data/enm/study-NWKI-61c73e33-28ab-3387-8cdf-cb7c135fb06c.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-3c8f8896-6dea-4451-a11f-3c965363955c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-61c73e33-28ab-3387-8cdf-cb7c135fb06c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 18.3,
+        "errorValue": 6.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6392b929-1b64-34ce-90c6-162b99ce3992.json b/test/data/enm/study-NWKI-6392b929-1b64-34ce-90c6-162b99ce3992.json
new file mode 100644
index 0000000..b0a68cf
--- /dev/null
+++ b/test/data/enm/study-NWKI-6392b929-1b64-34ce-90c6-162b99ce3992.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-494d44b2-073a-4136-b394-0efd79375df2",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6392b929-1b64-34ce-90c6-162b99ce3992"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 14.7,
+        "errorValue": 5.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-666817c2-87cb-3826-92f8-e79a7b37957d.json b/test/data/enm/study-NWKI-666817c2-87cb-3826-92f8-e79a7b37957d.json
new file mode 100644
index 0000000..2d49af7
--- /dev/null
+++ b/test/data/enm/study-NWKI-666817c2-87cb-3826-92f8-e79a7b37957d.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-d17c12f1-7406-4114-82b4-2e1bc70fb96f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-666817c2-87cb-3826-92f8-e79a7b37957d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 60
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64.json b/test/data/enm/study-NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64.json
new file mode 100644
index 0000000..ea9641e
--- /dev/null
+++ b/test/data/enm/study-NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-7daf91aa-55cd-4134-823f-507d470782dd",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-674cfd7c-bc77-36c7-bbe0-d52dd0233d64"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1080/10934520600966177",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "Shape",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Primarily gamma phase"
+  },
+  "effects": [
+    {
+      "endpoint": "SHAPE",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Primarily gamma phase"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9.json b/test/data/enm/study-NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9.json
new file mode 100644
index 0000000..6d2e6ca
--- /dev/null
+++ b/test/data/enm/study-NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9.json
@@ -0,0 +1,55 @@
+{
+  "uuid": "NWKI-d5e6f259-f334-47d7-882b-339469b2d6c7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-67b71fb2-85c1-3130-bd4e-84da8bc05fc9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_MELTING_SECTION",
+      "term": "http://semanticscience.org/resource/CHEMINF_000256",
+      "title": "4.2 Melting point / freezing point"
+    },
+    "endpoint": "Melting Point",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Melting Point",
+      "conditions": {
+        "Decomposition": null,
+        "Sublimation": null
+      },
+      "result": {
+        "unit": "°C",
+        "loQualifier": ">=",
+        "loValue": 1600
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d.json b/test/data/enm/study-NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d.json
new file mode 100644
index 0000000..c8d8cb8
--- /dev/null
+++ b/test/data/enm/study-NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-afaf9d66-7295-4597-b804-b1b6ff16380e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6821e372-3b17-3a56-8fac-f66115f24e5d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Mean Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 47
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-694f4202-c0ba-3ed9-a0f3-0a5ccba9e9c1.json b/test/data/enm/study-NWKI-694f4202-c0ba-3ed9-a0f3-0a5ccba9e9c1.json
new file mode 100644
index 0000000..23feed6
--- /dev/null
+++ b/test/data/enm/study-NWKI-694f4202-c0ba-3ed9-a0f3-0a5ccba9e9c1.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-875567d3-6661-4f7e-82ff-e95d8dcea8bf",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-694f4202-c0ba-3ed9-a0f3-0a5ccba9e9c1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Mean Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 137
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-696f7b05-2dea-3a14-b080-fef134f4eff5.json b/test/data/enm/study-NWKI-696f7b05-2dea-3a14-b080-fef134f4eff5.json
new file mode 100644
index 0000000..c9f20ec
--- /dev/null
+++ b/test/data/enm/study-NWKI-696f7b05-2dea-3a14-b080-fef134f4eff5.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-566d754e-ac76-4e29-a17e-6e7e815ba719",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-696f7b05-2dea-3a14-b080-fef134f4eff5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 12,
+        "errorValue": 3.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-69b604fb-e892-31ba-a6f5-feb6cb04effb.json b/test/data/enm/study-NWKI-69b604fb-e892-31ba-a6f5-feb6cb04effb.json
new file mode 100644
index 0000000..00a8569
--- /dev/null
+++ b/test/data/enm/study-NWKI-69b604fb-e892-31ba-a6f5-feb6cb04effb.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-e43d32f2-ae16-4616-bf39-1621decccad1",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-69b604fb-e892-31ba-a6f5-feb6cb04effb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.95
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-69fa9265-308d-30c5-9d86-1f18cde14afb.json b/test/data/enm/study-NWKI-69fa9265-308d-30c5-9d86-1f18cde14afb.json
new file mode 100644
index 0000000..35dfc64
--- /dev/null
+++ b/test/data/enm/study-NWKI-69fa9265-308d-30c5-9d86-1f18cde14afb.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-b73daa7d-227f-4a0c-b2c1-8b2515f43582",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-69fa9265-308d-30c5-9d86-1f18cde14afb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.envpol.2008.11.004",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 429
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6a8efcf8-a19c-3fb3-b8ca-3f4e1a09fcb0.json b/test/data/enm/study-NWKI-6a8efcf8-a19c-3fb3-b8ca-3f4e1a09fcb0.json
new file mode 100644
index 0000000..3cb850b
--- /dev/null
+++ b/test/data/enm/study-NWKI-6a8efcf8-a19c-3fb3-b8ca-3f4e1a09fcb0.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-545da080-c5eb-4a56-b10b-3390d3959238",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6a8efcf8-a19c-3fb3-b8ca-3f4e1a09fcb0"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -50.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6b07ffd5-b573-3889-a64c-ae7cc99ff977.json b/test/data/enm/study-NWKI-6b07ffd5-b573-3889-a64c-ae7cc99ff977.json
new file mode 100644
index 0000000..628652a
--- /dev/null
+++ b/test/data/enm/study-NWKI-6b07ffd5-b573-3889-a64c-ae7cc99ff977.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "NWKI-fb0daa9b-a135-4e67-80bb-58735b271757",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6b07ffd5-b573-3889-a64c-ae7cc99ff977"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": -60,
+        "upQualifier": "<=",
+        "upValue": 45
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6b1b44fa-70c1-3034-9c4b-7efb334762e0.json b/test/data/enm/study-NWKI-6b1b44fa-70c1-3034-9c4b-7efb334762e0.json
new file mode 100644
index 0000000..3d47bf2
--- /dev/null
+++ b/test/data/enm/study-NWKI-6b1b44fa-70c1-3034-9c4b-7efb334762e0.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-cf2e640c-3ae5-4149-bd89-81fe25149e93",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6b1b44fa-70c1-3034-9c4b-7efb334762e0"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Mean Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 95
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6b4d33a5-b573-3dbe-9ec3-9d2a9bc42a2e.json b/test/data/enm/study-NWKI-6b4d33a5-b573-3dbe-9ec3-9d2a9bc42a2e.json
new file mode 100644
index 0000000..41f3fda
--- /dev/null
+++ b/test/data/enm/study-NWKI-6b4d33a5-b573-3dbe-9ec3-9d2a9bc42a2e.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-dcbe96d3-af8b-48e5-94c2-7c081c1b978a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6b4d33a5-b573-3dbe-9ec3-9d2a9bc42a2e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 86.8,
+        "errorValue": 9.83
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6b8a44a2-b835-3f75-903c-cf0a71a247c9.json b/test/data/enm/study-NWKI-6b8a44a2-b835-3f75-903c-cf0a71a247c9.json
new file mode 100644
index 0000000..cc22d62
--- /dev/null
+++ b/test/data/enm/study-NWKI-6b8a44a2-b835-3f75-903c-cf0a71a247c9.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-b253bb51-98c6-4542-ac49-1d4065642da9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6b8a44a2-b835-3f75-903c-cf0a71a247c9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es051043o",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002993_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002993",
+      "title": "BAO_0002993 Cytotoxicity Assay"
+    },
+    "endpoint": "Concentration in cell",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Concentration_in_cell",
+      "conditions": {
+        "Concentration in culture medium": {
+          "loValue": 100,
+          "unit": "ng/g"
+        },
+        "Time": {
+          "loValue": 10,
+          "unit": "m"
+        }
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6cab56b4-69d9-36e0-8c17-f467d08b2555.json b/test/data/enm/study-NWKI-6cab56b4-69d9-36e0-8c17-f467d08b2555.json
new file mode 100644
index 0000000..142f11d
--- /dev/null
+++ b/test/data/enm/study-NWKI-6cab56b4-69d9-36e0-8c17-f467d08b2555.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-e49fd474-935c-4ca5-b755-884722787ee5",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6cab56b4-69d9-36e0-8c17-f467d08b2555"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6cde234d-f073-3e1d-acd2-0ea10a01763f.json b/test/data/enm/study-NWKI-6cde234d-f073-3e1d-acd2-0ea10a01763f.json
new file mode 100644
index 0000000..060b909
--- /dev/null
+++ b/test/data/enm/study-NWKI-6cde234d-f073-3e1d-acd2-0ea10a01763f.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-d8519fb8-dff7-4317-82e5-cdf3c99eeea8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6cde234d-f073-3e1d-acd2-0ea10a01763f"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -44.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6d5462cc-7e11-3919-b769-135f56fd2536.json b/test/data/enm/study-NWKI-6d5462cc-7e11-3919-b769-135f56fd2536.json
new file mode 100644
index 0000000..72e71f8
--- /dev/null
+++ b/test/data/enm/study-NWKI-6d5462cc-7e11-3919-b769-135f56fd2536.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-5f396653-ef15-4c28-b5fb-5b0a89ff145e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6d5462cc-7e11-3919-b769-135f56fd2536"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.soilbio.2013.01.016",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loQualifier": ">=",
+        "loValue": 8,
+        "upQualifier": "<=",
+        "upValue": 15
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6e6a5fec-23c2-3fff-8522-a22689091196.json b/test/data/enm/study-NWKI-6e6a5fec-23c2-3fff-8522-a22689091196.json
new file mode 100644
index 0000000..896a987
--- /dev/null
+++ b/test/data/enm/study-NWKI-6e6a5fec-23c2-3fff-8522-a22689091196.json
@@ -0,0 +1,55 @@
+{
+  "uuid": "NWKI-e93beeb2-1448-497f-9931-56afc2834747",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6e6a5fec-23c2-3fff-8522-a22689091196"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_MELTING_SECTION",
+      "term": "http://semanticscience.org/resource/CHEMINF_000256",
+      "title": "4.2 Melting point / freezing point"
+    },
+    "endpoint": "Melting Point",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Melting Point",
+      "conditions": {
+        "Decomposition": null,
+        "Sublimation": null
+      },
+      "result": {
+        "unit": "°C",
+        "loQualifier": ">=",
+        "loValue": 1600
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-6ede15ea-8037-379f-933e-7b947e155c6a.json b/test/data/enm/study-NWKI-6ede15ea-8037-379f-933e-7b947e155c6a.json
new file mode 100644
index 0000000..828c348
--- /dev/null
+++ b/test/data/enm/study-NWKI-6ede15ea-8037-379f-933e-7b947e155c6a.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-77206c3d-0288-45eb-9c5c-6f5e5245e499",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-6ede15ea-8037-379f-933e-7b947e155c6a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1039/C4FD00117F",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "Å",
+        "loQualifier": ">=",
+        "loValue": 25,
+        "upQualifier": "<=",
+        "upValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7031754f-5bb6-3594-8a32-0c03256cdf61.json b/test/data/enm/study-NWKI-7031754f-5bb6-3594-8a32-0c03256cdf61.json
new file mode 100644
index 0000000..7cc85b4
--- /dev/null
+++ b/test/data/enm/study-NWKI-7031754f-5bb6-3594-8a32-0c03256cdf61.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-e66557c3-f380-4f87-ad2c-7a943571224a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7031754f-5bb6-3594-8a32-0c03256cdf61"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -47.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-705f070c-0c34-3638-803b-c5e85749bf53.json b/test/data/enm/study-NWKI-705f070c-0c34-3638-803b-c5e85749bf53.json
new file mode 100644
index 0000000..88ab243
--- /dev/null
+++ b/test/data/enm/study-NWKI-705f070c-0c34-3638-803b-c5e85749bf53.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-db74fd62-6078-4d38-acf0-c905ddd6f566",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-705f070c-0c34-3638-803b-c5e85749bf53"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 32.7,
+        "errorValue": 8.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-70e8dac6-42a3-36ed-8fa3-19ffbc3bb69f.json b/test/data/enm/study-NWKI-70e8dac6-42a3-36ed-8fa3-19ffbc3bb69f.json
new file mode 100644
index 0000000..b05d0f7
--- /dev/null
+++ b/test/data/enm/study-NWKI-70e8dac6-42a3-36ed-8fa3-19ffbc3bb69f.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-497f175a-9524-4d84-91bc-041d0423e724",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-70e8dac6-42a3-36ed-8fa3-19ffbc3bb69f"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-71060af4-1613-35cf-95ee-2a039be0388a.json b/test/data/enm/study-NWKI-71060af4-1613-35cf-95ee-2a039be0388a.json
new file mode 100644
index 0000000..2aff23b
--- /dev/null
+++ b/test/data/enm/study-NWKI-71060af4-1613-35cf-95ee-2a039be0388a.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-6bfc3b55-c53c-4b28-a094-351b9097689a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-71060af4-1613-35cf-95ee-2a039be0388a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 76,
+        "errorValue": 10.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7181cc57-548a-3117-b59a-bfff2933c0b5.json b/test/data/enm/study-NWKI-7181cc57-548a-3117-b59a-bfff2933c0b5.json
new file mode 100644
index 0000000..0def525
--- /dev/null
+++ b/test/data/enm/study-NWKI-7181cc57-548a-3117-b59a-bfff2933c0b5.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-e22dd986-7128-4270-ad57-28d619a2db06",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7181cc57-548a-3117-b59a-bfff2933c0b5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2015.1017022",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Average Length",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Average Length",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "μm",
+        "loValue": 4.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-72ead9c0-f7c1-36f4-98c4-92faa7e81863.json b/test/data/enm/study-NWKI-72ead9c0-f7c1-36f4-98c4-92faa7e81863.json
new file mode 100644
index 0000000..0a77700
--- /dev/null
+++ b/test/data/enm/study-NWKI-72ead9c0-f7c1-36f4-98c4-92faa7e81863.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f1e1f762-cb0e-4758-8242-9dbeba51898c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-72ead9c0-f7c1-36f4-98c4-92faa7e81863"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 0.375,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-743f46ab-ca20-3f60-a14f-1695430eae68.json b/test/data/enm/study-NWKI-743f46ab-ca20-3f60-a14f-1695430eae68.json
new file mode 100644
index 0000000..ac92c1c
--- /dev/null
+++ b/test/data/enm/study-NWKI-743f46ab-ca20-3f60-a14f-1695430eae68.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-424e79ab-f8be-4bad-8c1e-2abf76cdcdd7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-743f46ab-ca20-3f60-a14f-1695430eae68"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.envpol.2008.11.004",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 532
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-74c6a1ca-f415-3c86-9437-446299eb5e40.json b/test/data/enm/study-NWKI-74c6a1ca-f415-3c86-9437-446299eb5e40.json
new file mode 100644
index 0000000..0231609
--- /dev/null
+++ b/test/data/enm/study-NWKI-74c6a1ca-f415-3c86-9437-446299eb5e40.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-01486dcf-1529-4177-87cc-3ac2968d7604",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-74c6a1ca-f415-3c86-9437-446299eb5e40"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -40.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-758c06ae-dc1f-3cbe-a409-91d14e5113d1.json b/test/data/enm/study-NWKI-758c06ae-dc1f-3cbe-a409-91d14e5113d1.json
new file mode 100644
index 0000000..2c1dd2e
--- /dev/null
+++ b/test/data/enm/study-NWKI-758c06ae-dc1f-3cbe-a409-91d14e5113d1.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-d86e6d2d-7cb2-4b9d-b196-3d6188634cc1",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-758c06ae-dc1f-3cbe-a409-91d14e5113d1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA-2DED-2DVT750"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "VT750"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "VT750"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7680f6c2-68d8-3ee4-b84b-8107da3f6e19.json b/test/data/enm/study-NWKI-7680f6c2-68d8-3ee4-b84b-8107da3f6e19.json
new file mode 100644
index 0000000..698d80d
--- /dev/null
+++ b/test/data/enm/study-NWKI-7680f6c2-68d8-3ee4-b84b-8107da3f6e19.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-b8bdb816-6822-4cfb-b0db-d775259ada5b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7680f6c2-68d8-3ee4-b84b-8107da3f6e19"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -18.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-77fb742b-c676-3ad7-bd19-6d5ec1df62ad.json b/test/data/enm/study-NWKI-77fb742b-c676-3ad7-bd19-6d5ec1df62ad.json
new file mode 100644
index 0000000..6d9e924
--- /dev/null
+++ b/test/data/enm/study-NWKI-77fb742b-c676-3ad7-bd19-6d5ec1df62ad.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-b2410a3b-3566-4d20-b44d-26cc260aa5ba",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-77fb742b-c676-3ad7-bd19-6d5ec1df62ad"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 20,
+        "upQualifier": "<=",
+        "upValue": 60
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7998492c-3902-3cc2-9f92-cdfae53cfc02.json b/test/data/enm/study-NWKI-7998492c-3902-3cc2-9f92-cdfae53cfc02.json
new file mode 100644
index 0000000..be600a7
--- /dev/null
+++ b/test/data/enm/study-NWKI-7998492c-3902-3cc2-9f92-cdfae53cfc02.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-cc5b881d-450b-46a0-acf0-0b59464a24f8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7998492c-3902-3cc2-9f92-cdfae53cfc02"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es051043o",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002993_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002993",
+      "title": "BAO_0002993 Cytotoxicity Assay"
+    },
+    "endpoint": "Concentration in cell",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Concentration_in_cell",
+      "conditions": {
+        "Concentration in culture medium": {
+          "loValue": 100,
+          "unit": "ng/g"
+        },
+        "Time": {
+          "loValue": 3,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7a8cde87-8021-3d12-9dfe-f408dfe81a74.json b/test/data/enm/study-NWKI-7a8cde87-8021-3d12-9dfe-f408dfe81a74.json
new file mode 100644
index 0000000..dccdebf
--- /dev/null
+++ b/test/data/enm/study-NWKI-7a8cde87-8021-3d12-9dfe-f408dfe81a74.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-88f9ff3b-4ff7-4ddd-b0c9-de797a65170a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7a8cde87-8021-3d12-9dfe-f408dfe81a74"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 21
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7b6aae8a-bc39-3794-8140-8d409630c8bc.json b/test/data/enm/study-NWKI-7b6aae8a-bc39-3794-8140-8d409630c8bc.json
new file mode 100644
index 0000000..9c57c33
--- /dev/null
+++ b/test/data/enm/study-NWKI-7b6aae8a-bc39-3794-8140-8d409630c8bc.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-26592811-15c2-4a2e-b684-e0849e59ad2d",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7b6aae8a-bc39-3794-8140-8d409630c8bc"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -59.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7cbc5266-5c2e-3821-a80a-5d6a63140d83.json b/test/data/enm/study-NWKI-7cbc5266-5c2e-3821-a80a-5d6a63140d83.json
new file mode 100644
index 0000000..ef48b59
--- /dev/null
+++ b/test/data/enm/study-NWKI-7cbc5266-5c2e-3821-a80a-5d6a63140d83.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-b559c4ad-cf60-4602-aab1-088948542e00",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7cbc5266-5c2e-3821-a80a-5d6a63140d83"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -48.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7d4e9d59-fb38-37b9-99ec-b150ed7ce133.json b/test/data/enm/study-NWKI-7d4e9d59-fb38-37b9-99ec-b150ed7ce133.json
new file mode 100644
index 0000000..9bc52f4
--- /dev/null
+++ b/test/data/enm/study-NWKI-7d4e9d59-fb38-37b9-99ec-b150ed7ce133.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-a3d44087-49c4-40a0-9453-1e60deb312d2",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7d4e9d59-fb38-37b9-99ec-b150ed7ce133"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "SiO2"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "SiO2"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "APS_Coating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "APS"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "APS"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7ec086b4-bfe8-3246-9c6c-b3565770315b.json b/test/data/enm/study-NWKI-7ec086b4-bfe8-3246-9c6c-b3565770315b.json
new file mode 100644
index 0000000..30eb896
--- /dev/null
+++ b/test/data/enm/study-NWKI-7ec086b4-bfe8-3246-9c6c-b3565770315b.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-a487ab56-09b1-4518-b3da-ee1bd8bf3f25",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7ec086b4-bfe8-3246-9c6c-b3565770315b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 21
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7efe542f-264c-3b57-a516-410b730df963.json b/test/data/enm/study-NWKI-7efe542f-264c-3b57-a516-410b730df963.json
new file mode 100644
index 0000000..a6f20ea
--- /dev/null
+++ b/test/data/enm/study-NWKI-7efe542f-264c-3b57-a516-410b730df963.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-afb4950b-8b6c-49aa-bf88-002590f9da09",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7efe542f-264c-3b57-a516-410b730df963"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 33
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-7fca9f1b-fb2a-3fa5-a080-21391413787d.json b/test/data/enm/study-NWKI-7fca9f1b-fb2a-3fa5-a080-21391413787d.json
new file mode 100644
index 0000000..5d9af52
--- /dev/null
+++ b/test/data/enm/study-NWKI-7fca9f1b-fb2a-3fa5-a080-21391413787d.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-827ec00c-a596-4f38-b9ad-08f943876e31",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-7fca9f1b-fb2a-3fa5-a080-21391413787d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn200546k",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 1.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-80364e0e-be06-3645-a3ae-880ae0edddef.json b/test/data/enm/study-NWKI-80364e0e-be06-3645-a3ae-880ae0edddef.json
new file mode 100644
index 0000000..a692557
--- /dev/null
+++ b/test/data/enm/study-NWKI-80364e0e-be06-3645-a3ae-880ae0edddef.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-da94bc66-2353-4c5b-b79a-394b815a1032",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-80364e0e-be06-3645-a3ae-880ae0edddef"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 119,
+        "errorValue": 16
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8090df08-f0f9-3c2f-8769-b51c2adaffc1.json b/test/data/enm/study-NWKI-8090df08-f0f9-3c2f-8769-b51c2adaffc1.json
new file mode 100644
index 0000000..a938cf9
--- /dev/null
+++ b/test/data/enm/study-NWKI-8090df08-f0f9-3c2f-8769-b51c2adaffc1.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-8f580200-09f2-41bb-b4e7-c374edca92fb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8090df08-f0f9-3c2f-8769-b51c2adaffc1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 4.98,
+        "errorValue": 0.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-80f9ab46-f8fe-36de-9335-17c9d1dbdba5.json b/test/data/enm/study-NWKI-80f9ab46-f8fe-36de-9335-17c9d1dbdba5.json
new file mode 100644
index 0000000..b35f333
--- /dev/null
+++ b/test/data/enm/study-NWKI-80f9ab46-f8fe-36de-9335-17c9d1dbdba5.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-ff0b4348-41cb-40e4-8d13-f8d63fd01973",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-80f9ab46-f8fe-36de-9335-17c9d1dbdba5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2015.1017022",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Diameter",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Diameter",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "μm",
+        "loValue": 1.1,
+        "errorValue": 0.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-812e122b-8bee-350d-8aea-aaaa88ce84dd.json b/test/data/enm/study-NWKI-812e122b-8bee-350d-8aea-aaaa88ce84dd.json
new file mode 100644
index 0000000..6e7dee8
--- /dev/null
+++ b/test/data/enm/study-NWKI-812e122b-8bee-350d-8aea-aaaa88ce84dd.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-eeeeb0a4-1916-4f36-8179-13e6ae2acafb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-812e122b-8bee-350d-8aea-aaaa88ce84dd"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 50,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8196e92b-c46d-3c14-9410-e87992810710.json b/test/data/enm/study-NWKI-8196e92b-c46d-3c14-9410-e87992810710.json
new file mode 100644
index 0000000..8ee8ba2
--- /dev/null
+++ b/test/data/enm/study-NWKI-8196e92b-c46d-3c14-9410-e87992810710.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-d9cdbe0d-05e6-4d3b-8c05-1f957e5b317e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8196e92b-c46d-3c14-9410-e87992810710"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "ED-2DPVA"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "PVA"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-823e6217-d5b0-3c61-b886-768cfe726d38.json b/test/data/enm/study-NWKI-823e6217-d5b0-3c61-b886-768cfe726d38.json
new file mode 100644
index 0000000..7fabee9
--- /dev/null
+++ b/test/data/enm/study-NWKI-823e6217-d5b0-3c61-b886-768cfe726d38.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-522b7192-5e42-46b5-91e4-7af1ad67f9f8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-823e6217-d5b0-3c61-b886-768cfe726d38"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 6.3,
+        "errorValue": 0.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-82665bf4-5c5e-325a-a7ee-44ff1c6045b7.json b/test/data/enm/study-NWKI-82665bf4-5c5e-325a-a7ee-44ff1c6045b7.json
new file mode 100644
index 0000000..6ace092
--- /dev/null
+++ b/test/data/enm/study-NWKI-82665bf4-5c5e-325a-a7ee-44ff1c6045b7.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-990dfff9-347f-4340-a32d-f4c62938677f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-82665bf4-5c5e-325a-a7ee-44ff1c6045b7"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 10,
+        "errorValue": 2.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-82bed004-9895-3bdf-822f-0b9906d2ee06.json b/test/data/enm/study-NWKI-82bed004-9895-3bdf-822f-0b9906d2ee06.json
new file mode 100644
index 0000000..8240bd9
--- /dev/null
+++ b/test/data/enm/study-NWKI-82bed004-9895-3bdf-822f-0b9906d2ee06.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-d37b40f8-aadf-497e-b6f0-13a752fc4839",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-82bed004-9895-3bdf-822f-0b9906d2ee06"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-82c12809-d7af-3061-a531-1db744c521f0.json b/test/data/enm/study-NWKI-82c12809-d7af-3061-a531-1db744c521f0.json
new file mode 100644
index 0000000..1542ad2
--- /dev/null
+++ b/test/data/enm/study-NWKI-82c12809-d7af-3061-a531-1db744c521f0.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-eef63f55-589e-4f39-9981-16b5e109b518",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-82c12809-d7af-3061-a531-1db744c521f0"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 37
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-83a75181-9103-3ef9-aec7-fa38074580f6.json b/test/data/enm/study-NWKI-83a75181-9103-3ef9-aec7-fa38074580f6.json
new file mode 100644
index 0000000..6176831
--- /dev/null
+++ b/test/data/enm/study-NWKI-83a75181-9103-3ef9-aec7-fa38074580f6.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-e754b05e-be94-4cce-a33d-19173e404ca1",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-83a75181-9103-3ef9-aec7-fa38074580f6"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -71.8,
+        "errorValue": 11.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-845bf8fc-788d-38f2-be58-030f27c0d337.json b/test/data/enm/study-NWKI-845bf8fc-788d-38f2-be58-030f27c0d337.json
new file mode 100644
index 0000000..089520d
--- /dev/null
+++ b/test/data/enm/study-NWKI-845bf8fc-788d-38f2-be58-030f27c0d337.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-8b3ff259-2009-44f5-9480-f00cb9ae69c8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-845bf8fc-788d-38f2-be58-030f27c0d337"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 15,
+        "upQualifier": "<=",
+        "upValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-85b50517-fdea-3aa6-abbd-dd506393aaa5.json b/test/data/enm/study-NWKI-85b50517-fdea-3aa6-abbd-dd506393aaa5.json
new file mode 100644
index 0000000..a66fcd9
--- /dev/null
+++ b/test/data/enm/study-NWKI-85b50517-fdea-3aa6-abbd-dd506393aaa5.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-89c9d590-26e4-4f2d-8439-4bf6c76f7558",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-85b50517-fdea-3aa6-abbd-dd506393aaa5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 144
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-863267cf-faf0-349b-8046-6074d2e718b5.json b/test/data/enm/study-NWKI-863267cf-faf0-349b-8046-6074d2e718b5.json
new file mode 100644
index 0000000..568f70f
--- /dev/null
+++ b/test/data/enm/study-NWKI-863267cf-faf0-349b-8046-6074d2e718b5.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-e5772c16-6c45-4b96-8873-b920f0af25de",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-863267cf-faf0-349b-8046-6074d2e718b5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.soilbio.2013.01.016",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 61
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8667bfb7-a5da-3eb0-b9d7-86e2c8f06f19.json b/test/data/enm/study-NWKI-8667bfb7-a5da-3eb0-b9d7-86e2c8f06f19.json
new file mode 100644
index 0000000..f1823aa
--- /dev/null
+++ b/test/data/enm/study-NWKI-8667bfb7-a5da-3eb0-b9d7-86e2c8f06f19.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-f78a6697-ef20-470a-9472-b92cb085f363",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8667bfb7-a5da-3eb0-b9d7-86e2c8f06f19"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3762/bjnano.5.151",
+    "year": "2014",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Percentage Viable Cells",
+    "guideline": [
+      "MTT reduction assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "Caco-2 cell",
+    "Method type": "MTT reduction assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Percentage_Viable_Cells",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 600,
+          "unit": "µg/mL"
+        },
+        "Incubation Time": {
+          "loValue": 4
+        }
+      },
+      "result": {
+        "unit": null,
+        "loValue": 95
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-86b21444-5403-3e29-b117-e09ef92cca2a.json b/test/data/enm/study-NWKI-86b21444-5403-3e29-b117-e09ef92cca2a.json
new file mode 100644
index 0000000..8a04e8c
--- /dev/null
+++ b/test/data/enm/study-NWKI-86b21444-5403-3e29-b117-e09ef92cca2a.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-72d5df53-e275-429b-b016-acd988de6623",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-86b21444-5403-3e29-b117-e09ef92cca2a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-88767671-5631-3c93-8cfc-db0f48978e77.json b/test/data/enm/study-NWKI-88767671-5631-3c93-8cfc-db0f48978e77.json
new file mode 100644
index 0000000..1526d44
--- /dev/null
+++ b/test/data/enm/study-NWKI-88767671-5631-3c93-8cfc-db0f48978e77.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-b4ab83bc-2f09-4aee-8e13-71525a8208ac",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-88767671-5631-3c93-8cfc-db0f48978e77"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 2.87
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-895a506b-c331-3576-bf9e-cbcde5822c11.json b/test/data/enm/study-NWKI-895a506b-c331-3576-bf9e-cbcde5822c11.json
new file mode 100644
index 0000000..74ae839
--- /dev/null
+++ b/test/data/enm/study-NWKI-895a506b-c331-3576-bf9e-cbcde5822c11.json
@@ -0,0 +1,65 @@
+{
+  "uuid": "NWKI-ce622deb-7190-4284-a5e1-eee219c4d6b0",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-895a506b-c331-3576-bf9e-cbcde5822c11"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/ja309812z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "Serum": {
+          "loValue": "PBS"
+        },
+        "pH": {
+          "loValue": 7.45
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -36
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8a4b3e23-3327-3421-b20a-2e71939b44b1.json b/test/data/enm/study-NWKI-8a4b3e23-3327-3421-b20a-2e71939b44b1.json
new file mode 100644
index 0000000..30c316e
--- /dev/null
+++ b/test/data/enm/study-NWKI-8a4b3e23-3327-3421-b20a-2e71939b44b1.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-e30588db-ff9b-42fa-ae5f-eba1238b82aa",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8a4b3e23-3327-3421-b20a-2e71939b44b1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 38
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8a968835-50ab-33df-bf5e-42de32d01c15.json b/test/data/enm/study-NWKI-8a968835-50ab-33df-bf5e-42de32d01c15.json
new file mode 100644
index 0000000..807770a
--- /dev/null
+++ b/test/data/enm/study-NWKI-8a968835-50ab-33df-bf5e-42de32d01c15.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-e7692ca8-09d6-4c84-a069-6f57200ab2e0",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8a968835-50ab-33df-bf5e-42de32d01c15"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3762/bjnano.5.151",
+    "year": "2014",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Percentage Viable Cells",
+    "guideline": [
+      "MTT reduction assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "Colon HT29",
+    "Method type": "MTT reduction assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Percentage_Viable_Cells",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 600,
+          "unit": "µg/mL"
+        },
+        "Incubation Time": {
+          "loValue": 4
+        }
+      },
+      "result": {
+        "unit": null,
+        "loValue": 102
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8c5b9350-2c03-3173-9615-cabfbe6929c9.json b/test/data/enm/study-NWKI-8c5b9350-2c03-3173-9615-cabfbe6929c9.json
new file mode 100644
index 0000000..5ddef68
--- /dev/null
+++ b/test/data/enm/study-NWKI-8c5b9350-2c03-3173-9615-cabfbe6929c9.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-dbe3c3e5-d791-431b-b958-7e6330adee08",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8c5b9350-2c03-3173-9615-cabfbe6929c9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "BET",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 200
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8ef21404-e101-37c8-8206-32f526d75012.json b/test/data/enm/study-NWKI-8ef21404-e101-37c8-8206-32f526d75012.json
new file mode 100644
index 0000000..eeb7d68
--- /dev/null
+++ b/test/data/enm/study-NWKI-8ef21404-e101-37c8-8206-32f526d75012.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f1c00d50-7b3c-4380-9611-7796fcb6605a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8ef21404-e101-37c8-8206-32f526d75012"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 100,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8f43d9fb-94ae-3d2b-8bb6-e8eb060e3b1b.json b/test/data/enm/study-NWKI-8f43d9fb-94ae-3d2b-8bb6-e8eb060e3b1b.json
new file mode 100644
index 0000000..de5695d
--- /dev/null
+++ b/test/data/enm/study-NWKI-8f43d9fb-94ae-3d2b-8bb6-e8eb060e3b1b.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-90bd6e98-90e7-4dd7-88cf-41608544e1fe",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8f43d9fb-94ae-3d2b-8bb6-e8eb060e3b1b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 11
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-8f7f774c-d727-33a9-adc6-9068524faf1c.json b/test/data/enm/study-NWKI-8f7f774c-d727-33a9-adc6-9068524faf1c.json
new file mode 100644
index 0000000..59752b6
--- /dev/null
+++ b/test/data/enm/study-NWKI-8f7f774c-d727-33a9-adc6-9068524faf1c.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-dcebdf50-3012-4f47-920f-e1b23004e3c2",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-8f7f774c-d727-33a9-adc6-9068524faf1c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 36
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-905e44ef-3f7f-314d-add0-3e00439eaded.json b/test/data/enm/study-NWKI-905e44ef-3f7f-314d-add0-3e00439eaded.json
new file mode 100644
index 0000000..fa531b9
--- /dev/null
+++ b/test/data/enm/study-NWKI-905e44ef-3f7f-314d-add0-3e00439eaded.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-4b60773a-f65a-438f-8299-286082243561",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-905e44ef-3f7f-314d-add0-3e00439eaded"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 3.45
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-90869553-c8fe-3ef6-8e68-47f392958127.json b/test/data/enm/study-NWKI-90869553-c8fe-3ef6-8e68-47f392958127.json
new file mode 100644
index 0000000..f84dccc
--- /dev/null
+++ b/test/data/enm/study-NWKI-90869553-c8fe-3ef6-8e68-47f392958127.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-e1a5e9f3-2a77-4fb7-80b2-e84689f62c50",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-90869553-c8fe-3ef6-8e68-47f392958127"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe3O4"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe3O4"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DCY55"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Cross-2Dlinked_dextran"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Cross-2Dlinked_dextran"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-9142c528-4a84-3566-b678-dc1eef7d22fe.json b/test/data/enm/study-NWKI-9142c528-4a84-3566-b678-dc1eef7d22fe.json
new file mode 100644
index 0000000..c613621
--- /dev/null
+++ b/test/data/enm/study-NWKI-9142c528-4a84-3566-b678-dc1eef7d22fe.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-bd4d124b-86d8-4a04-ba5a-cb9e28ddf28a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-9142c528-4a84-3566-b678-dc1eef7d22fe"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 60
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-916751bb-8457-3844-87c0-ada4c6afd1ab.json b/test/data/enm/study-NWKI-916751bb-8457-3844-87c0-ada4c6afd1ab.json
new file mode 100644
index 0000000..5bb85ce
--- /dev/null
+++ b/test/data/enm/study-NWKI-916751bb-8457-3844-87c0-ada4c6afd1ab.json
@@ -0,0 +1,65 @@
+{
+  "uuid": "NWKI-f7b60875-d81f-4dcb-87d0-2eaf6608c658",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-916751bb-8457-3844-87c0-ada4c6afd1ab"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/ja309812z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "Serum": {
+          "loValue": "sfMEM"
+        },
+        "pH": {
+          "loValue": 8.11
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-92e20781-9c38-3c12-a311-14eab1e776fa.json b/test/data/enm/study-NWKI-92e20781-9c38-3c12-a311-14eab1e776fa.json
new file mode 100644
index 0000000..4688f9e
--- /dev/null
+++ b/test/data/enm/study-NWKI-92e20781-9c38-3c12-a311-14eab1e776fa.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-1680e54d-dc50-46e5-beb2-725261d70e42",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-92e20781-9c38-3c12-a311-14eab1e776fa"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -61.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-959963fd-df22-35fb-b821-dd3d74dd40ce.json b/test/data/enm/study-NWKI-959963fd-df22-35fb-b821-dd3d74dd40ce.json
new file mode 100644
index 0000000..850b0af
--- /dev/null
+++ b/test/data/enm/study-NWKI-959963fd-df22-35fb-b821-dd3d74dd40ce.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-210d0bde-ac61-4498-92e9-e801eaed0325",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-959963fd-df22-35fb-b821-dd3d74dd40ce"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 180
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-95bb8173-3aad-3441-a50e-97e62401eadb.json b/test/data/enm/study-NWKI-95bb8173-3aad-3441-a50e-97e62401eadb.json
new file mode 100644
index 0000000..69ccfdc
--- /dev/null
+++ b/test/data/enm/study-NWKI-95bb8173-3aad-3441-a50e-97e62401eadb.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-16d02082-1ba3-4510-b59e-403abf8f1d23",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-95bb8173-3aad-3441-a50e-97e62401eadb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1039/C4FD00117F",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "Å",
+        "loQualifier": ">=",
+        "loValue": 25,
+        "upQualifier": "<=",
+        "upValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-97103918-5eeb-36a3-9981-3aa6dcef5d4c.json b/test/data/enm/study-NWKI-97103918-5eeb-36a3-9981-3aa6dcef5d4c.json
new file mode 100644
index 0000000..5acea5b
--- /dev/null
+++ b/test/data/enm/study-NWKI-97103918-5eeb-36a3-9981-3aa6dcef5d4c.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f72b366c-8a43-46dc-a05b-1a27ef7bf17d",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-97103918-5eeb-36a3-9981-3aa6dcef5d4c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 150,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-97a6970a-0e83-3890-ae6e-5e83b99c0325.json b/test/data/enm/study-NWKI-97a6970a-0e83-3890-ae6e-5e83b99c0325.json
new file mode 100644
index 0000000..299fc2f
--- /dev/null
+++ b/test/data/enm/study-NWKI-97a6970a-0e83-3890-ae6e-5e83b99c0325.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-d5b02413-e80f-4df6-baa6-1da0cc43ef92",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-97a6970a-0e83-3890-ae6e-5e83b99c0325"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 21
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-984a9c7f-2372-3b8f-9ff5-93a9f94f2eb7.json b/test/data/enm/study-NWKI-984a9c7f-2372-3b8f-9ff5-93a9f94f2eb7.json
new file mode 100644
index 0000000..a57ae76
--- /dev/null
+++ b/test/data/enm/study-NWKI-984a9c7f-2372-3b8f-9ff5-93a9f94f2eb7.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-ef516d0f-83b9-4325-9568-401a03384707",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-984a9c7f-2372-3b8f-9ff5-93a9f94f2eb7"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn202116p",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 40,
+        "errorValue": 12
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-994226ce-df01-3717-b45d-376f645a8d47.json b/test/data/enm/study-NWKI-994226ce-df01-3717-b45d-376f645a8d47.json
new file mode 100644
index 0000000..048295e
--- /dev/null
+++ b/test/data/enm/study-NWKI-994226ce-df01-3717-b45d-376f645a8d47.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-9f39a0b9-0fc2-41a2-b130-fca0712881ea",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-994226ce-df01-3717-b45d-376f645a8d47"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 3.14
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-99ad0a8c-1c4b-3270-8a4b-7dab013e5fe8.json b/test/data/enm/study-NWKI-99ad0a8c-1c4b-3270-8a4b-7dab013e5fe8.json
new file mode 100644
index 0000000..79e637d
--- /dev/null
+++ b/test/data/enm/study-NWKI-99ad0a8c-1c4b-3270-8a4b-7dab013e5fe8.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-b47b3bb8-8641-4c6a-b225-19d76714e4f9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-99ad0a8c-1c4b-3270-8a4b-7dab013e5fe8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 61.7,
+        "errorValue": 11.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-99fe068d-e343-35f8-9cc9-06c3a3cf8e22.json b/test/data/enm/study-NWKI-99fe068d-e343-35f8-9cc9-06c3a3cf8e22.json
new file mode 100644
index 0000000..373adeb
--- /dev/null
+++ b/test/data/enm/study-NWKI-99fe068d-e343-35f8-9cc9-06c3a3cf8e22.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-3225cb74-4a8d-4395-b54e-4e82b7314e3a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-99fe068d-e343-35f8-9cc9-06c3a3cf8e22"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 51.5,
+        "errorValue": 7.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-9a0a7a86-fd00-3835-9795-a4da7d9d1544.json b/test/data/enm/study-NWKI-9a0a7a86-fd00-3835-9795-a4da7d9d1544.json
new file mode 100644
index 0000000..46bf611
--- /dev/null
+++ b/test/data/enm/study-NWKI-9a0a7a86-fd00-3835-9795-a4da7d9d1544.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-f9da39f2-c4fe-4158-b508-d51ee55e8122",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-9a0a7a86-fd00-3835-9795-a4da7d9d1544"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe3O4"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe3O4"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DCY7"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Cross-2Dlinked_dextran"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Cross-2Dlinked_dextran"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-9a13f473-8a29-32e4-9653-ec03f5fb8923.json b/test/data/enm/study-NWKI-9a13f473-8a29-32e4-9653-ec03f5fb8923.json
new file mode 100644
index 0000000..b550b12
--- /dev/null
+++ b/test/data/enm/study-NWKI-9a13f473-8a29-32e4-9653-ec03f5fb8923.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-b4caa096-20f9-4b80-a35a-4db2789b3d8c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-9a13f473-8a29-32e4-9653-ec03f5fb8923"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "AmphPolymer-2DPEG"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PEG"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "PEG"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-9a41ca03-303d-3116-89fb-2335cc1bad2d.json b/test/data/enm/study-NWKI-9a41ca03-303d-3116-89fb-2335cc1bad2d.json
new file mode 100644
index 0000000..447892e
--- /dev/null
+++ b/test/data/enm/study-NWKI-9a41ca03-303d-3116-89fb-2335cc1bad2d.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-d9f7009b-c7da-4a61-b3d8-7d475465a081",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-9a41ca03-303d-3116-89fb-2335cc1bad2d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Diameter",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Diameter",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 11
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-9f37da26-8619-3eb1-9c29-e5f9ea09de54.json b/test/data/enm/study-NWKI-9f37da26-8619-3eb1-9c29-e5f9ea09de54.json
new file mode 100644
index 0000000..97f0241
--- /dev/null
+++ b/test/data/enm/study-NWKI-9f37da26-8619-3eb1-9c29-e5f9ea09de54.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-da0a27f7-bbfd-4f1f-a3a1-10d6a5994c9b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-9f37da26-8619-3eb1-9c29-e5f9ea09de54"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.chemosphere.2011.04.067",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Percentage Viable Cells",
+    "guideline": [
+      "Cell number determination"
+    ]
+  },
+  "parameters": {
+    "Cell line": "HaCaT",
+    "Method type": "Cell number determination"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Percentage_Viable_Cells",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 100,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "loValue": 95
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-9f46a2dd-dda3-3c99-81c0-8d904172c345.json b/test/data/enm/study-NWKI-9f46a2dd-dda3-3c99-81c0-8d904172c345.json
new file mode 100644
index 0000000..1b11723
--- /dev/null
+++ b/test/data/enm/study-NWKI-9f46a2dd-dda3-3c99-81c0-8d904172c345.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-d59c481d-eb03-4319-8994-a0e250e3edfe",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-9f46a2dd-dda3-3c99-81c0-8d904172c345"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
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+        "Remark": null,
+        "pH": {
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+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -73.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-9fb12a3a-3a26-3f95-82ed-371f58d92dfe.json b/test/data/enm/study-NWKI-9fb12a3a-3a26-3f95-82ed-371f58d92dfe.json
new file mode 100644
index 0000000..3bb83fe
--- /dev/null
+++ b/test/data/enm/study-NWKI-9fb12a3a-3a26-3f95-82ed-371f58d92dfe.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-c186d7c2-0f51-4d53-969d-56fe3692dc68",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-9fb12a3a-3a26-3f95-82ed-371f58d92dfe"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
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+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 173,
+        "errorValue": 17
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac.json b/test/data/enm/study-NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac.json
new file mode 100644
index 0000000..f5bf837
--- /dev/null
+++ b/test/data/enm/study-NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-7768d3c9-59f0-40c7-8c3f-0391d02d48cb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a03a76c5-85b2-3b10-b567-87ca006c15ac"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 11.8,
+        "errorValue": 3.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a28e83ea-54da-3391-9bca-4a8891680403.json b/test/data/enm/study-NWKI-a28e83ea-54da-3391-9bca-4a8891680403.json
new file mode 100644
index 0000000..9fa4517
--- /dev/null
+++ b/test/data/enm/study-NWKI-a28e83ea-54da-3391-9bca-4a8891680403.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-fc688bd6-96d8-4219-a59a-2b95903bea30",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a28e83ea-54da-3391-9bca-4a8891680403"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 105,
+        "errorValue": 26
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a2d5a729-4ed1-3f1b-a5fd-3bd090a48aa5.json b/test/data/enm/study-NWKI-a2d5a729-4ed1-3f1b-a5fd-3bd090a48aa5.json
new file mode 100644
index 0000000..0f633d7
--- /dev/null
+++ b/test/data/enm/study-NWKI-a2d5a729-4ed1-3f1b-a5fd-3bd090a48aa5.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "NWKI-f17de7b3-3545-4488-a373-01a207c8230b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a2d5a729-4ed1-3f1b-a5fd-3bd090a48aa5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn301622h",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 7
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -56,
+        "errorValue": 5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc.json b/test/data/enm/study-NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc.json
new file mode 100644
index 0000000..ca639b9
--- /dev/null
+++ b/test/data/enm/study-NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-c4ab521d-9cd7-4933-b4aa-e881f92846a8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a32cb420-7aa2-3130-9612-edfe833d83fc"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1080/10934520600966177",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loQualifier": ">=",
+        "loValue": 15,
+        "upQualifier": "<=",
+        "upValue": 25
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a33b26f0-2fc7-3aa1-9dd6-27380f725bfe.json b/test/data/enm/study-NWKI-a33b26f0-2fc7-3aa1-9dd6-27380f725bfe.json
new file mode 100644
index 0000000..25c7d2a
--- /dev/null
+++ b/test/data/enm/study-NWKI-a33b26f0-2fc7-3aa1-9dd6-27380f725bfe.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-934c5c1a-86df-4901-9e9c-bf4a2ca93465",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a33b26f0-2fc7-3aa1-9dd6-27380f725bfe"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 2.49
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a40c7554-4bd8-3938-82a9-bf9db1f7bc13.json b/test/data/enm/study-NWKI-a40c7554-4bd8-3938-82a9-bf9db1f7bc13.json
new file mode 100644
index 0000000..fcab7a7
--- /dev/null
+++ b/test/data/enm/study-NWKI-a40c7554-4bd8-3938-82a9-bf9db1f7bc13.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-d6228eb8-afa7-438c-92b2-d9b264aee538",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a40c7554-4bd8-3938-82a9-bf9db1f7bc13"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -45.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a855e2c5-73f1-32c0-8a87-aa521fd69928.json b/test/data/enm/study-NWKI-a855e2c5-73f1-32c0-8a87-aa521fd69928.json
new file mode 100644
index 0000000..e80fe03
--- /dev/null
+++ b/test/data/enm/study-NWKI-a855e2c5-73f1-32c0-8a87-aa521fd69928.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-02e70892-6694-4917-abc4-04073abdfae8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a855e2c5-73f1-32c0-8a87-aa521fd69928"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1063/1.2061873",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-a95db64e-5499-371a-bdce-a4aa31f93218.json b/test/data/enm/study-NWKI-a95db64e-5499-371a-bdce-a4aa31f93218.json
new file mode 100644
index 0000000..723c9f4
--- /dev/null
+++ b/test/data/enm/study-NWKI-a95db64e-5499-371a-bdce-a4aa31f93218.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-65922873-2b18-467a-8b0d-7d985d296419",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-a95db64e-5499-371a-bdce-a4aa31f93218"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn200546k",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 0.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ab2d4bdd-7a72-3e26-8552-5bb6027896bb.json b/test/data/enm/study-NWKI-ab2d4bdd-7a72-3e26-8552-5bb6027896bb.json
new file mode 100644
index 0000000..4809823
--- /dev/null
+++ b/test/data/enm/study-NWKI-ab2d4bdd-7a72-3e26-8552-5bb6027896bb.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-92592b26-8cd8-49ed-b336-c4a26da733f9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ab2d4bdd-7a72-3e26-8552-5bb6027896bb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn202116p",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 665,
+        "errorValue": 46
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ad1d5068-29cd-3d8c-9ed0-44ed4ce06ddd.json b/test/data/enm/study-NWKI-ad1d5068-29cd-3d8c-9ed0-44ed4ce06ddd.json
new file mode 100644
index 0000000..3ea6823
--- /dev/null
+++ b/test/data/enm/study-NWKI-ad1d5068-29cd-3d8c-9ed0-44ed4ce06ddd.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-df09fcef-098d-4e01-9d19-0304cd36e96d",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ad1d5068-29cd-3d8c-9ed0-44ed4ce06ddd"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe3O4"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe3O4"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DVT680"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Cross-2Dlinked_dextran"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Cross-2Dlinked_dextran"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ad44f58f-8080-3017-9f8d-485fad044849.json b/test/data/enm/study-NWKI-ad44f58f-8080-3017-9f8d-485fad044849.json
new file mode 100644
index 0000000..6744ecb
--- /dev/null
+++ b/test/data/enm/study-NWKI-ad44f58f-8080-3017-9f8d-485fad044849.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-c333c3a5-ccab-4104-af6d-dc079e051b30",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ad44f58f-8080-3017-9f8d-485fad044849"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DRhodamine-2DProtamine"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Rhodamine"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Rhodamine"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ae0be5b8-266b-3b6a-825d-55f14b51cc99.json b/test/data/enm/study-NWKI-ae0be5b8-266b-3b6a-825d-55f14b51cc99.json
new file mode 100644
index 0000000..23b718e
--- /dev/null
+++ b/test/data/enm/study-NWKI-ae0be5b8-266b-3b6a-825d-55f14b51cc99.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-c9a98eea-c9b4-485b-891f-e715ffbe4792",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ae0be5b8-266b-3b6a-825d-55f14b51cc99"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -6.47
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ae63c430-7a80-35c3-828d-c859d81ce698.json b/test/data/enm/study-NWKI-ae63c430-7a80-35c3-828d-c859d81ce698.json
new file mode 100644
index 0000000..efd15e7
--- /dev/null
+++ b/test/data/enm/study-NWKI-ae63c430-7a80-35c3-828d-c859d81ce698.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-de90d49e-4055-46b1-9c9f-3106a61306d8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ae63c430-7a80-35c3-828d-c859d81ce698"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 132,
+        "errorValue": 11
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8.json b/test/data/enm/study-NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8.json
new file mode 100644
index 0000000..e0c118b
--- /dev/null
+++ b/test/data/enm/study-NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-e1b6ba8e-5535-43b7-b82d-8356c6004d19",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ae67096a-fca6-3afc-bade-c362e3eeadc8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn202116p",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 23,
+        "errorValue": 7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b.json b/test/data/enm/study-NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b.json
new file mode 100644
index 0000000..a56bd96
--- /dev/null
+++ b/test/data/enm/study-NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-e26d4379-6272-4aed-80f4-68e4c557dca5",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-aeeb6004-b180-3b01-a9ab-68b64e19011b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn2021056",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -14.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-afc33b0f-f6ce-3c1b-8a3d-cede13515323.json b/test/data/enm/study-NWKI-afc33b0f-f6ce-3c1b-8a3d-cede13515323.json
new file mode 100644
index 0000000..9668dd8
--- /dev/null
+++ b/test/data/enm/study-NWKI-afc33b0f-f6ce-3c1b-8a3d-cede13515323.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-c7ab52cf-dcbf-4b3a-b246-25604905b5c6",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-afc33b0f-f6ce-3c1b-8a3d-cede13515323"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA-2DAminoSPARK680"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "PVA"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-b110d018-6de0-303b-afcc-6a5e1f5911aa.json b/test/data/enm/study-NWKI-b110d018-6de0-303b-afcc-6a5e1f5911aa.json
new file mode 100644
index 0000000..35709bc
--- /dev/null
+++ b/test/data/enm/study-NWKI-b110d018-6de0-303b-afcc-6a5e1f5911aa.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f698f09b-0fe8-49a5-9653-1e19d87e87d4",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-b110d018-6de0-303b-afcc-6a5e1f5911aa"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Specific Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-b14e37d1-8dbb-36d7-925c-4093c91a0e92.json b/test/data/enm/study-NWKI-b14e37d1-8dbb-36d7-925c-4093c91a0e92.json
new file mode 100644
index 0000000..da53f89
--- /dev/null
+++ b/test/data/enm/study-NWKI-b14e37d1-8dbb-36d7-925c-4093c91a0e92.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-cd054b32-9679-4de6-9770-3e0b6935bd20",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-b14e37d1-8dbb-36d7-925c-4093c91a0e92"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 10,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-b19125a9-4499-3e0e-aa0c-7792401f4900.json b/test/data/enm/study-NWKI-b19125a9-4499-3e0e-aa0c-7792401f4900.json
new file mode 100644
index 0000000..9e5c5e1
--- /dev/null
+++ b/test/data/enm/study-NWKI-b19125a9-4499-3e0e-aa0c-7792401f4900.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-a7c2edb4-81b6-42db-ac24-f886e5ac4c55",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-b19125a9-4499-3e0e-aa0c-7792401f4900"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-b4bd899e-c57e-3aaa-bf6f-54ec8ebd6ab5.json b/test/data/enm/study-NWKI-b4bd899e-c57e-3aaa-bf6f-54ec8ebd6ab5.json
new file mode 100644
index 0000000..28183ba
--- /dev/null
+++ b/test/data/enm/study-NWKI-b4bd899e-c57e-3aaa-bf6f-54ec8ebd6ab5.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-2bf27a2e-1693-4d61-9d4f-85904590957c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-b4bd899e-c57e-3aaa-bf6f-54ec8ebd6ab5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 50
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-b5385309-1812-33ad-a4cf-66d8d3a26bcc.json b/test/data/enm/study-NWKI-b5385309-1812-33ad-a4cf-66d8d3a26bcc.json
new file mode 100644
index 0000000..2bed1d3
--- /dev/null
+++ b/test/data/enm/study-NWKI-b5385309-1812-33ad-a4cf-66d8d3a26bcc.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-e1028d25-5223-4684-b42a-bbdcbbdbfedd",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-b5385309-1812-33ad-a4cf-66d8d3a26bcc"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 99,
+        "errorValue": 9
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-b6c86895-1b73-39ec-8bd2-0106e77a7673.json b/test/data/enm/study-NWKI-b6c86895-1b73-39ec-8bd2-0106e77a7673.json
new file mode 100644
index 0000000..9e53eca
--- /dev/null
+++ b/test/data/enm/study-NWKI-b6c86895-1b73-39ec-8bd2-0106e77a7673.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-f888f18c-4f44-4365-94ba-0bdeb0e73501",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-b6c86895-1b73-39ec-8bd2-0106e77a7673"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 27
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-bb2f1a47-0260-3271-b9c3-edb850d15be9.json b/test/data/enm/study-NWKI-bb2f1a47-0260-3271-b9c3-edb850d15be9.json
new file mode 100644
index 0000000..63a0b1d
--- /dev/null
+++ b/test/data/enm/study-NWKI-bb2f1a47-0260-3271-b9c3-edb850d15be9.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-75da2ea6-d0d3-4a13-8e26-43f82a437d8a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-bb2f1a47-0260-3271-b9c3-edb850d15be9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1039/C4FD00117F",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "Å",
+        "loQualifier": ">=",
+        "loValue": 25,
+        "upQualifier": "<=",
+        "upValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-bb304faf-e44e-3103-b2a6-01b99c1c23de.json b/test/data/enm/study-NWKI-bb304faf-e44e-3103-b2a6-01b99c1c23de.json
new file mode 100644
index 0000000..5798795
--- /dev/null
+++ b/test/data/enm/study-NWKI-bb304faf-e44e-3103-b2a6-01b99c1c23de.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-aacd1d5b-bbb1-4bfe-add2-1b616797b9c2",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-bb304faf-e44e-3103-b2a6-01b99c1c23de"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 23,
+        "upQualifier": "<=",
+        "upValue": 35
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-bb97285c-a58f-34c0-aa16-d5eac02280fa.json b/test/data/enm/study-NWKI-bb97285c-a58f-34c0-aa16-d5eac02280fa.json
new file mode 100644
index 0000000..11744ae
--- /dev/null
+++ b/test/data/enm/study-NWKI-bb97285c-a58f-34c0-aa16-d5eac02280fa.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-ebafaab1-1dc2-41af-8065-393cb37943a0",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-bb97285c-a58f-34c0-aa16-d5eac02280fa"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -73.7,
+        "errorValue": 17.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-bbb67d89-eaff-38ab-ba4f-403bfb064a0c.json b/test/data/enm/study-NWKI-bbb67d89-eaff-38ab-ba4f-403bfb064a0c.json
new file mode 100644
index 0000000..191f580
--- /dev/null
+++ b/test/data/enm/study-NWKI-bbb67d89-eaff-38ab-ba4f-403bfb064a0c.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-ddc8bdc0-b096-4f84-93ae-9f97c6c45e49",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-bbb67d89-eaff-38ab-ba4f-403bfb064a0c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA-2DED-2DSuccAminoSPARK680"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Succinylated_Amino_SPARK680"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Succinylated_Amino_SPARK680"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-bbce341e-3e4d-37f9-a891-5462ada32180.json b/test/data/enm/study-NWKI-bbce341e-3e4d-37f9-a891-5462ada32180.json
new file mode 100644
index 0000000..86d164f
--- /dev/null
+++ b/test/data/enm/study-NWKI-bbce341e-3e4d-37f9-a891-5462ada32180.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-96076900-e780-4903-b87b-e239a69a3691",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-bbce341e-3e4d-37f9-a891-5462ada32180"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 68
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-bc434442-e632-3829-be8d-64df1c9b70d3.json b/test/data/enm/study-NWKI-bc434442-e632-3829-be8d-64df1c9b70d3.json
new file mode 100644
index 0000000..e68b88d
--- /dev/null
+++ b/test/data/enm/study-NWKI-bc434442-e632-3829-be8d-64df1c9b70d3.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-3d0e9cd5-4ad6-4505-a94c-5ef922462050",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-bc434442-e632-3829-be8d-64df1c9b70d3"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1063/1.2061873",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-bec49753-e5ff-3f5d-96a4-69a07da2de45.json b/test/data/enm/study-NWKI-bec49753-e5ff-3f5d-96a4-69a07da2de45.json
new file mode 100644
index 0000000..34fdff1
--- /dev/null
+++ b/test/data/enm/study-NWKI-bec49753-e5ff-3f5d-96a4-69a07da2de45.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-6a508e43-b24e-4c97-b503-62c22c4f73ce",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-bec49753-e5ff-3f5d-96a4-69a07da2de45"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 22.5,
+        "errorValue": 6.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c012600e-ca8e-31db-a7a8-d9f6a74e2464.json b/test/data/enm/study-NWKI-c012600e-ca8e-31db-a7a8-d9f6a74e2464.json
new file mode 100644
index 0000000..56481ce
--- /dev/null
+++ b/test/data/enm/study-NWKI-c012600e-ca8e-31db-a7a8-d9f6a74e2464.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-b6ad5d66-dd21-4d69-ba96-ae4e2623a8a0",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c012600e-ca8e-31db-a7a8-d9f6a74e2464"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Isoelectric Point",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ISOELECTRIC POINT",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": 6.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c05becdf-4b9b-3599-9922-89235b2e10da.json b/test/data/enm/study-NWKI-c05becdf-4b9b-3599-9922-89235b2e10da.json
new file mode 100644
index 0000000..0f01f76
--- /dev/null
+++ b/test/data/enm/study-NWKI-c05becdf-4b9b-3599-9922-89235b2e10da.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-d4f7c4f3-c00a-4572-a2fa-5f174ec7d412",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c05becdf-4b9b-3599-9922-89235b2e10da"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -37
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c075299c-c306-341a-8ccb-62c5bd123ab3.json b/test/data/enm/study-NWKI-c075299c-c306-341a-8ccb-62c5bd123ab3.json
new file mode 100644
index 0000000..35501c2
--- /dev/null
+++ b/test/data/enm/study-NWKI-c075299c-c306-341a-8ccb-62c5bd123ab3.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-1b01ed49-5212-4774-b777-9ff22f324e2f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c075299c-c306-341a-8ccb-62c5bd123ab3"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 140.6,
+        "errorValue": 52.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c0927a67-d21d-37e8-932d-fb1607e58aee.json b/test/data/enm/study-NWKI-c0927a67-d21d-37e8-932d-fb1607e58aee.json
new file mode 100644
index 0000000..419d383
--- /dev/null
+++ b/test/data/enm/study-NWKI-c0927a67-d21d-37e8-932d-fb1607e58aee.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-f7d03856-5343-4baa-ad7a-c1c3722a2e5a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c0927a67-d21d-37e8-932d-fb1607e58aee"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "2009",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002167_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002167",
+      "title": "BAO_0002167 Genotoxicity Assay"
+    },
+    "endpoint": "DNA in Tail",
+    "guideline": [
+      "Fpg-2Dmodified Comet Assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "Caco-2 cell",
+    "Method type": "Fpg-2Dmodified Comet Assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "DNA_in_Tail",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 20,
+          "unit": "ug/cm^2"
+        },
+        "FPG Content": {
+          "loValue": 100
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c10e9034-a37c-37f8-afa4-b0e1081c6856.json b/test/data/enm/study-NWKI-c10e9034-a37c-37f8-afa4-b0e1081c6856.json
new file mode 100644
index 0000000..c99a23b
--- /dev/null
+++ b/test/data/enm/study-NWKI-c10e9034-a37c-37f8-afa4-b0e1081c6856.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-f5b27205-883e-4ca5-9b36-dcff899424e7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c10e9034-a37c-37f8-afa4-b0e1081c6856"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 13.5,
+        "errorValue": 4.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c2075a8a-c7f2-31df-9d04-1cb096cdfece.json b/test/data/enm/study-NWKI-c2075a8a-c7f2-31df-9d04-1cb096cdfece.json
new file mode 100644
index 0000000..b34d87e
--- /dev/null
+++ b/test/data/enm/study-NWKI-c2075a8a-c7f2-31df-9d04-1cb096cdfece.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-2434304e-6236-4c16-8c91-e2269ef64a82",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c2075a8a-c7f2-31df-9d04-1cb096cdfece"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 10,
+        "upQualifier": "<=",
+        "upValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c2ab6def-8305-3b78-958a-4657b3363e11.json b/test/data/enm/study-NWKI-c2ab6def-8305-3b78-958a-4657b3363e11.json
new file mode 100644
index 0000000..5509d0e
--- /dev/null
+++ b/test/data/enm/study-NWKI-c2ab6def-8305-3b78-958a-4657b3363e11.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-9d6b99fd-4b45-4711-8ec3-a69204d695a7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c2ab6def-8305-3b78-958a-4657b3363e11"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 142
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2.json b/test/data/enm/study-NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2.json
new file mode 100644
index 0000000..656e8d5
--- /dev/null
+++ b/test/data/enm/study-NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-4ed9f2c7-b2a3-44b9-ac42-cccc38e89ac8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c35f0f16-4616-3ec6-a142-4d274add68a2"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 43.8,
+        "errorValue": 15.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c3d91296-7c2d-3971-b932-e671f2f83aa8.json b/test/data/enm/study-NWKI-c3d91296-7c2d-3971-b932-e671f2f83aa8.json
new file mode 100644
index 0000000..cff9e10
--- /dev/null
+++ b/test/data/enm/study-NWKI-c3d91296-7c2d-3971-b932-e671f2f83aa8.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-b3e40d3a-a564-42ef-8200-bd7d9836dda1",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c3d91296-7c2d-3971-b932-e671f2f83aa8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 57.4,
+        "errorValue": 16.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c3ff049e-e72a-35fe-9bbf-77f018259d63.json b/test/data/enm/study-NWKI-c3ff049e-e72a-35fe-9bbf-77f018259d63.json
new file mode 100644
index 0000000..8c9efc2
--- /dev/null
+++ b/test/data/enm/study-NWKI-c3ff049e-e72a-35fe-9bbf-77f018259d63.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-c54c86ac-49f3-4655-9faf-4055521df1e8",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c3ff049e-e72a-35fe-9bbf-77f018259d63"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390903276933",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "BET",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loQualifier": ">=",
+        "loValue": 0.0,
+        "upQualifier": "<=",
+        "upValue": 10
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c4c91023-5b41-3d6d-bb4f-ee1152926be0.json b/test/data/enm/study-NWKI-c4c91023-5b41-3d6d-bb4f-ee1152926be0.json
new file mode 100644
index 0000000..3c79f57
--- /dev/null
+++ b/test/data/enm/study-NWKI-c4c91023-5b41-3d6d-bb4f-ee1152926be0.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f3f409b5-312e-4c14-bd8b-86983cbb69be",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c4c91023-5b41-3d6d-bb4f-ee1152926be0"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.chemosphere.2011.04.067",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Percentage Viable Cells",
+    "guideline": [
+      "Cell number determination"
+    ]
+  },
+  "parameters": {
+    "Cell line": "HaCaT",
+    "Method type": "Cell number determination"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Percentage_Viable_Cells",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 2500,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "loValue": 45
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c5e226b0-d405-32d5-a652-7f7f1f0eb55d.json b/test/data/enm/study-NWKI-c5e226b0-d405-32d5-a652-7f7f1f0eb55d.json
new file mode 100644
index 0000000..28ee2a5
--- /dev/null
+++ b/test/data/enm/study-NWKI-c5e226b0-d405-32d5-a652-7f7f1f0eb55d.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-e9eecdcb-5179-4160-8e90-268db1c378a7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c5e226b0-d405-32d5-a652-7f7f1f0eb55d"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 91.9,
+        "errorValue": 4.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c6c08b6e-cb44-3e91-9669-0979667f12b3.json b/test/data/enm/study-NWKI-c6c08b6e-cb44-3e91-9669-0979667f12b3.json
new file mode 100644
index 0000000..4c9111e
--- /dev/null
+++ b/test/data/enm/study-NWKI-c6c08b6e-cb44-3e91-9669-0979667f12b3.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-b0ec7163-0d6b-455d-ac0b-0b20289bd60a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c6c08b6e-cb44-3e91-9669-0979667f12b3"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1063/1.2061873",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c7bee4e3-8884-3e29-ad8b-38decf6146fd.json b/test/data/enm/study-NWKI-c7bee4e3-8884-3e29-ad8b-38decf6146fd.json
new file mode 100644
index 0000000..bced761
--- /dev/null
+++ b/test/data/enm/study-NWKI-c7bee4e3-8884-3e29-ad8b-38decf6146fd.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-ea56f38e-663f-4bdc-ab4a-1d9f204e7477",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c7bee4e3-8884-3e29-ad8b-38decf6146fd"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -14
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c8d9772c-e50e-3c71-986c-e45692150d71.json b/test/data/enm/study-NWKI-c8d9772c-e50e-3c71-986c-e45692150d71.json
new file mode 100644
index 0000000..28f4ea2
--- /dev/null
+++ b/test/data/enm/study-NWKI-c8d9772c-e50e-3c71-986c-e45692150d71.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-ff7e7c54-4e86-462d-b849-1ca11d72beb9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c8d9772c-e50e-3c71-986c-e45692150d71"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 20,
+        "upQualifier": "<=",
+        "upValue": 60
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-c93a144a-cd6d-3fe0-ab86-13adb168ccb1.json b/test/data/enm/study-NWKI-c93a144a-cd6d-3fe0-ab86-13adb168ccb1.json
new file mode 100644
index 0000000..d37ce18
--- /dev/null
+++ b/test/data/enm/study-NWKI-c93a144a-cd6d-3fe0-ab86-13adb168ccb1.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-d8375116-28d0-4f57-84f8-91fe10910712",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-c93a144a-cd6d-3fe0-ab86-13adb168ccb1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_MELTING_SECTION",
+      "term": "http://semanticscience.org/resource/CHEMINF_000256",
+      "title": "4.2 Melting point / freezing point"
+    },
+    "endpoint": "Melting Point",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Melting Point",
+      "conditions": {
+        "Decomposition": null,
+        "Sublimation": null
+      },
+      "result": {
+        "unit": "Celsius"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ca37d03d-af78-3982-8ca0-76025e71fcf1.json b/test/data/enm/study-NWKI-ca37d03d-af78-3982-8ca0-76025e71fcf1.json
new file mode 100644
index 0000000..05f6d7f
--- /dev/null
+++ b/test/data/enm/study-NWKI-ca37d03d-af78-3982-8ca0-76025e71fcf1.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-df697673-f97c-4bc6-9187-ea0a8cad201c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ca37d03d-af78-3982-8ca0-76025e71fcf1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 2.87
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-cad5bf58-cc90-33e5-88bb-bad4c9f9fe9e.json b/test/data/enm/study-NWKI-cad5bf58-cc90-33e5-88bb-bad4c9f9fe9e.json
new file mode 100644
index 0000000..a71c286
--- /dev/null
+++ b/test/data/enm/study-NWKI-cad5bf58-cc90-33e5-88bb-bad4c9f9fe9e.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-be9f2ae3-be0e-402f-a6ba-5aada4c4c956",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-cad5bf58-cc90-33e5-88bb-bad4c9f9fe9e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DCY5"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Cy5"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Cy5"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-cc55dabc-3794-3853-9cf1-1e0bcf31fb69.json b/test/data/enm/study-NWKI-cc55dabc-3794-3853-9cf1-1e0bcf31fb69.json
new file mode 100644
index 0000000..8f54c49
--- /dev/null
+++ b/test/data/enm/study-NWKI-cc55dabc-3794-3853-9cf1-1e0bcf31fb69.json
@@ -0,0 +1,93 @@
+{
+  "uuid": "NWKI-cfd7a3eb-b360-4bac-9b3e-16b4698b9103",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-cc55dabc-3794-3853-9cf1-1e0bcf31fb69"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "SiO2"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "SiO2"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "COOH_Coating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "COOH"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "O=CO[H]"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "COOH"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-cd7cf8fc-ebd1-3b60-827c-aa33e4d5d433.json b/test/data/enm/study-NWKI-cd7cf8fc-ebd1-3b60-827c-aa33e4d5d433.json
new file mode 100644
index 0000000..cf70775
--- /dev/null
+++ b/test/data/enm/study-NWKI-cd7cf8fc-ebd1-3b60-827c-aa33e4d5d433.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-fc6a8459-0f8c-4910-8e68-1628be59ff93",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-cd7cf8fc-ebd1-3b60-827c-aa33e4d5d433"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -53.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ce7a2667-21e4-3bd2-b1b6-bd8c298e9df4.json b/test/data/enm/study-NWKI-ce7a2667-21e4-3bd2-b1b6-bd8c298e9df4.json
new file mode 100644
index 0000000..dc499be
--- /dev/null
+++ b/test/data/enm/study-NWKI-ce7a2667-21e4-3bd2-b1b6-bd8c298e9df4.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-f88dbef8-0f07-4a03-8bec-575095c52cab",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ce7a2667-21e4-3bd2-b1b6-bd8c298e9df4"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 24.6,
+        "errorValue": 5.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-cfea3b7c-ee39-34ef-8349-16b1e7825861.json b/test/data/enm/study-NWKI-cfea3b7c-ee39-34ef-8349-16b1e7825861.json
new file mode 100644
index 0000000..9b2555a
--- /dev/null
+++ b/test/data/enm/study-NWKI-cfea3b7c-ee39-34ef-8349-16b1e7825861.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-ce2bfbe2-1161-4c0e-ba26-281cd1f4c497",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-cfea3b7c-ee39-34ef-8349-16b1e7825861"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": 0.25
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d0a80e1b-1b7f-35c7-9185-244ccc2c04c2.json b/test/data/enm/study-NWKI-d0a80e1b-1b7f-35c7-9185-244ccc2c04c2.json
new file mode 100644
index 0000000..9262279
--- /dev/null
+++ b/test/data/enm/study-NWKI-d0a80e1b-1b7f-35c7-9185-244ccc2c04c2.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-64af3435-8edb-4585-8167-3a4e8ed2ea6a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d0a80e1b-1b7f-35c7-9185-244ccc2c04c2"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 88,
+        "errorValue": 12
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d1c31022-c044-30fa-931e-07d96b6f04b5.json b/test/data/enm/study-NWKI-d1c31022-c044-30fa-931e-07d96b6f04b5.json
new file mode 100644
index 0000000..c8ebcc6
--- /dev/null
+++ b/test/data/enm/study-NWKI-d1c31022-c044-30fa-931e-07d96b6f04b5.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-f34bd7ea-23f0-4914-9e8d-fc373f03a50e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d1c31022-c044-30fa-931e-07d96b6f04b5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1080/10934520600966177",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 40,
+        "upQualifier": "<=",
+        "upValue": 47
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877.json b/test/data/enm/study-NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877.json
new file mode 100644
index 0000000..b105b51
--- /dev/null
+++ b/test/data/enm/study-NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-fa7823ae-a58c-4fe5-82c5-cc4d9d952d9b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d39efcf3-d871-34c2-ac1c-b48f35bde877"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -39,
+        "errorValue": 4.98
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d3c8fab1-762e-32b8-a46e-cf4158f8ec49.json b/test/data/enm/study-NWKI-d3c8fab1-762e-32b8-a46e-cf4158f8ec49.json
new file mode 100644
index 0000000..0c3ef69
--- /dev/null
+++ b/test/data/enm/study-NWKI-d3c8fab1-762e-32b8-a46e-cf4158f8ec49.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-c7865053-f199-4816-9f79-de2f3d849b70",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d3c8fab1-762e-32b8-a46e-cf4158f8ec49"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 70
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d42892b8-9b57-30a2-aa89-af61880c337a.json b/test/data/enm/study-NWKI-d42892b8-9b57-30a2-aa89-af61880c337a.json
new file mode 100644
index 0000000..c34b3ab
--- /dev/null
+++ b/test/data/enm/study-NWKI-d42892b8-9b57-30a2-aa89-af61880c337a.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-b92935a2-e18a-4a51-a6a8-92961b6153a7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d42892b8-9b57-30a2-aa89-af61880c337a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -0.877
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d47026e9-f0f9-3080-8eca-d2b7fd66d261.json b/test/data/enm/study-NWKI-d47026e9-f0f9-3080-8eca-d2b7fd66d261.json
new file mode 100644
index 0000000..d761458
--- /dev/null
+++ b/test/data/enm/study-NWKI-d47026e9-f0f9-3080-8eca-d2b7fd66d261.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-b9a32c67-76d3-431b-b2a4-aa4dabc27537",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d47026e9-f0f9-3080-8eca-d2b7fd66d261"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.envpol.2008.11.004",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d52e3489-851d-3eeb-b887-9a595cc9adfe.json b/test/data/enm/study-NWKI-d52e3489-851d-3eeb-b887-9a595cc9adfe.json
new file mode 100644
index 0000000..492c535
--- /dev/null
+++ b/test/data/enm/study-NWKI-d52e3489-851d-3eeb-b887-9a595cc9adfe.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-0225a419-5e74-4fa8-8939-a2cf688547c9",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d52e3489-851d-3eeb-b887-9a595cc9adfe"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -66.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d63286d0-3205-3216-92ce-e9e2632aca9e.json b/test/data/enm/study-NWKI-d63286d0-3205-3216-92ce-e9e2632aca9e.json
new file mode 100644
index 0000000..a7d4754
--- /dev/null
+++ b/test/data/enm/study-NWKI-d63286d0-3205-3216-92ce-e9e2632aca9e.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-a6e0ae37-6f1a-403c-9e07-7b9fb9334132",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d63286d0-3205-3216-92ce-e9e2632aca9e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
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+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -15.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d7e38d71-0fcb-3a23-8cbe-aae4ce82b33a.json b/test/data/enm/study-NWKI-d7e38d71-0fcb-3a23-8cbe-aae4ce82b33a.json
new file mode 100644
index 0000000..00c1ef4
--- /dev/null
+++ b/test/data/enm/study-NWKI-d7e38d71-0fcb-3a23-8cbe-aae4ce82b33a.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-f803a531-0d74-4334-8b07-4dd5b902f43a",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d7e38d71-0fcb-3a23-8cbe-aae4ce82b33a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 3.37,
+        "errorValue": 0.57
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-d8f70c6c-3496-3ad3-8ab3-e4f08a178d30.json b/test/data/enm/study-NWKI-d8f70c6c-3496-3ad3-8ab3-e4f08a178d30.json
new file mode 100644
index 0000000..94bad46
--- /dev/null
+++ b/test/data/enm/study-NWKI-d8f70c6c-3496-3ad3-8ab3-e4f08a178d30.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-bb1d9e70-67eb-4f36-af0d-1e150743f576",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-d8f70c6c-3496-3ad3-8ab3-e4f08a178d30"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1016/j.chemosphere.2011.04.067",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Percentage Viable Cells",
+    "guideline": [
+      "Cell number determination"
+    ]
+  },
+  "parameters": {
+    "Cell line": "HaCaT",
+    "Method type": "Cell number determination"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Percentage_Viable_Cells",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 10,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "loValue": 98
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-db562080-5286-327a-b813-6775c437385e.json b/test/data/enm/study-NWKI-db562080-5286-327a-b813-6775c437385e.json
new file mode 100644
index 0000000..d557947
--- /dev/null
+++ b/test/data/enm/study-NWKI-db562080-5286-327a-b813-6775c437385e.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-bc3de50b-f2a1-42c1-b4b5-a180e292b177",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-db562080-5286-327a-b813-6775c437385e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -10.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-dd085452-8fd2-3025-a64f-2784fdf17879.json b/test/data/enm/study-NWKI-dd085452-8fd2-3025-a64f-2784fdf17879.json
new file mode 100644
index 0000000..ee6ceaa
--- /dev/null
+++ b/test/data/enm/study-NWKI-dd085452-8fd2-3025-a64f-2784fdf17879.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-bb3b0f78-9209-45ee-8a5d-03c0342b1fa7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-dd085452-8fd2-3025-a64f-2784fdf17879"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1039/C4FD00117F",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "Å",
+        "loQualifier": ">=",
+        "loValue": 25,
+        "upQualifier": "<=",
+        "upValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-dd6b8324-524e-3281-8bf4-09044fbf01ab.json b/test/data/enm/study-NWKI-dd6b8324-524e-3281-8bf4-09044fbf01ab.json
new file mode 100644
index 0000000..a370173
--- /dev/null
+++ b/test/data/enm/study-NWKI-dd6b8324-524e-3281-8bf4-09044fbf01ab.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-5e7ff0d3-fbef-44a0-bbdb-bb0c03fff028",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-dd6b8324-524e-3281-8bf4-09044fbf01ab"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 40,
+        "upQualifier": "<=",
+        "upValue": 70
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-de03994b-9d74-3e39-aa41-e7df34384442.json b/test/data/enm/study-NWKI-de03994b-9d74-3e39-aa41-e7df34384442.json
new file mode 100644
index 0000000..d3b0335
--- /dev/null
+++ b/test/data/enm/study-NWKI-de03994b-9d74-3e39-aa41-e7df34384442.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-f2c1af5b-2d28-4124-a88c-53fefaa4fff6",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-de03994b-9d74-3e39-aa41-e7df34384442"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 50,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-df2f5618-fab4-3f50-a191-1eabaa999ff9.json b/test/data/enm/study-NWKI-df2f5618-fab4-3f50-a191-1eabaa999ff9.json
new file mode 100644
index 0000000..475ef65
--- /dev/null
+++ b/test/data/enm/study-NWKI-df2f5618-fab4-3f50-a191-1eabaa999ff9.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-21c99803-9aea-440c-a82b-070a62e52524",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-df2f5618-fab4-3f50-a191-1eabaa999ff9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -74.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-dfbd99e5-c150-3a5e-9147-59255d42bebb.json b/test/data/enm/study-NWKI-dfbd99e5-c150-3a5e-9147-59255d42bebb.json
new file mode 100644
index 0000000..b26a23a
--- /dev/null
+++ b/test/data/enm/study-NWKI-dfbd99e5-c150-3a5e-9147-59255d42bebb.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-54b3ecd6-68b4-434d-bdaf-32a8c5a6f4f7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-dfbd99e5-c150-3a5e-9147-59255d42bebb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 13.1,
+        "errorValue": 5.9
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e0386856-5e55-330a-9b5e-364c00de2f2b.json b/test/data/enm/study-NWKI-e0386856-5e55-330a-9b5e-364c00de2f2b.json
new file mode 100644
index 0000000..dd4d0a6
--- /dev/null
+++ b/test/data/enm/study-NWKI-e0386856-5e55-330a-9b5e-364c00de2f2b.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-c0ad98c0-9298-490c-ae70-a1a9a015d197",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e0386856-5e55-330a-9b5e-364c00de2f2b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 12.3,
+        "errorValue": 2.9
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e078849d-6137-33fc-b103-d458cb77184a.json b/test/data/enm/study-NWKI-e078849d-6137-33fc-b103-d458cb77184a.json
new file mode 100644
index 0000000..2d768cf
--- /dev/null
+++ b/test/data/enm/study-NWKI-e078849d-6137-33fc-b103-d458cb77184a.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-edb48b72-618c-48f2-bda2-27e0c54780ca",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e078849d-6137-33fc-b103-d458cb77184a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn301622h",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "TEM",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 42,
+        "errorValue": 3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e0ffe4e6-978c-367d-a011-bd700587c9fe.json b/test/data/enm/study-NWKI-e0ffe4e6-978c-367d-a011-bd700587c9fe.json
new file mode 100644
index 0000000..32be288
--- /dev/null
+++ b/test/data/enm/study-NWKI-e0ffe4e6-978c-367d-a011-bd700587c9fe.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-d09c69c6-09df-4b84-952f-ba478fa185fd",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e0ffe4e6-978c-367d-a011-bd700587c9fe"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/tx800289z",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 20,
+        "upQualifier": "<=",
+        "upValue": 40
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e24378b0-c0bb-365a-b533-e8f303681c2e.json b/test/data/enm/study-NWKI-e24378b0-c0bb-365a-b533-e8f303681c2e.json
new file mode 100644
index 0000000..4861fc9
--- /dev/null
+++ b/test/data/enm/study-NWKI-e24378b0-c0bb-365a-b533-e8f303681c2e.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-35624d25-940c-4ca1-8342-b3a41a43323f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e24378b0-c0bb-365a-b533-e8f303681c2e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2011.587903",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 142
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e373781b-461e-35dd-ae27-4169b7d743af.json b/test/data/enm/study-NWKI-e373781b-461e-35dd-ae27-4169b7d743af.json
new file mode 100644
index 0000000..481f5bc
--- /dev/null
+++ b/test/data/enm/study-NWKI-e373781b-461e-35dd-ae27-4169b7d743af.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "NWKI-ce2e0558-33d9-4205-bf48-b1f053a73a96",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e373781b-461e-35dd-ae27-4169b7d743af"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DFITC"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "FITC"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "FITC"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e476955f-97bd-3e4c-8bef-03f56fe1b15b.json b/test/data/enm/study-NWKI-e476955f-97bd-3e4c-8bef-03f56fe1b15b.json
new file mode 100644
index 0000000..c80405e
--- /dev/null
+++ b/test/data/enm/study-NWKI-e476955f-97bd-3e4c-8bef-03f56fe1b15b.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-9f29113f-574a-4ebb-bf4c-bc805d2ed845",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e476955f-97bd-3e4c-8bef-03f56fe1b15b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 28.4,
+        "errorValue": 7.3
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e4dab3d9-2699-3a0b-9e9c-f257088142cc.json b/test/data/enm/study-NWKI-e4dab3d9-2699-3a0b-9e9c-f257088142cc.json
new file mode 100644
index 0000000..0be1ebb
--- /dev/null
+++ b/test/data/enm/study-NWKI-e4dab3d9-2699-3a0b-9e9c-f257088142cc.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-fd6b8b11-9ff1-4d65-be4b-ff9a0f15245f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e4dab3d9-2699-3a0b-9e9c-f257088142cc"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1002/smll.201002366",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Toxicity Classifier",
+    "guideline": [
+      "PI uptake assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "BEAS-2B",
+    "Method type": "PI uptake assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Non-toxic"
+  },
+  "effects": [
+    {
+      "endpoint": "Toxicity Classifier",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 0.375,
+          "unit": "mg/L"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Non-toxic"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e518c122-5f4f-3611-8b30-56b671883e5c.json b/test/data/enm/study-NWKI-e518c122-5f4f-3611-8b30-56b671883e5c.json
new file mode 100644
index 0000000..05a41c4
--- /dev/null
+++ b/test/data/enm/study-NWKI-e518c122-5f4f-3611-8b30-56b671883e5c.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-f5f44a99-a481-4795-83f3-f4a111bb155d",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e518c122-5f4f-3611-8b30-56b671883e5c"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e5b618fd-dd48-3562-9a55-737ac7a68466.json b/test/data/enm/study-NWKI-e5b618fd-dd48-3562-9a55-737ac7a68466.json
new file mode 100644
index 0000000..034d299
--- /dev/null
+++ b/test/data/enm/study-NWKI-e5b618fd-dd48-3562-9a55-737ac7a68466.json
@@ -0,0 +1,93 @@
+{
+  "uuid": "NWKI-d09421ea-de27-446c-8dd4-c475e3a51de7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e5b618fd-dd48-3562-9a55-737ac7a68466"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe2O3"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe2O3"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "PVA-2DPEG-2DED-2DVT750"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Ethylene_Diamine"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "NCCN"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Ethylene_Diamine"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e624f68e-2e00-30e4-b4bb-9e34383580cb.json b/test/data/enm/study-NWKI-e624f68e-2e00-30e4-b4bb-9e34383580cb.json
new file mode 100644
index 0000000..ae4e746
--- /dev/null
+++ b/test/data/enm/study-NWKI-e624f68e-2e00-30e4-b4bb-9e34383580cb.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-1eef5dd4-73da-41fc-a306-1c736fcb69bb",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e624f68e-2e00-30e4-b4bb-9e34383580cb"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 58
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e6ef5597-a3f9-3f21-afff-db5f654ef534.json b/test/data/enm/study-NWKI-e6ef5597-a3f9-3f21-afff-db5f654ef534.json
new file mode 100644
index 0000000..fe318ef
--- /dev/null
+++ b/test/data/enm/study-NWKI-e6ef5597-a3f9-3f21-afff-db5f654ef534.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-f574b0be-00ea-4407-b36f-f23425acddc7",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e6ef5597-a3f9-3f21-afff-db5f654ef534"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 2.29
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e7bdb2a3-0b3f-3a38-8d6b-1babc6d92da1.json b/test/data/enm/study-NWKI-e7bdb2a3-0b3f-3a38-8d6b-1babc6d92da1.json
new file mode 100644
index 0000000..fce9b5a
--- /dev/null
+++ b/test/data/enm/study-NWKI-e7bdb2a3-0b3f-3a38-8d6b-1babc6d92da1.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-ff8b50e6-08e4-4741-a71a-e37ccd013707",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e7bdb2a3-0b3f-3a38-8d6b-1babc6d92da1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn2021056",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 15.5,
+        "errorValue": 4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e834e3f1-8c0d-319e-9bac-21c613bdccd0.json b/test/data/enm/study-NWKI-e834e3f1-8c0d-319e-9bac-21c613bdccd0.json
new file mode 100644
index 0000000..bd9bba4
--- /dev/null
+++ b/test/data/enm/study-NWKI-e834e3f1-8c0d-319e-9bac-21c613bdccd0.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-a646b409-1a6d-4fa4-a45e-5033017d227f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e834e3f1-8c0d-319e-9bac-21c613bdccd0"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn200546k",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 0.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e85f1dfb-0830-32a3-8394-c2cce810e3e2.json b/test/data/enm/study-NWKI-e85f1dfb-0830-32a3-8394-c2cce810e3e2.json
new file mode 100644
index 0000000..4942b29
--- /dev/null
+++ b/test/data/enm/study-NWKI-e85f1dfb-0830-32a3-8394-c2cce810e3e2.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-203bc896-c8b2-4425-ba37-6c4ab168f360",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e85f1dfb-0830-32a3-8394-c2cce810e3e2"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -57.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e866549e-38cf-3b98-a0b1-a483e275d261.json b/test/data/enm/study-NWKI-e866549e-38cf-3b98-a0b1-a483e275d261.json
new file mode 100644
index 0000000..4f1b1b0
--- /dev/null
+++ b/test/data/enm/study-NWKI-e866549e-38cf-3b98-a0b1-a483e275d261.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-bc0e2bcb-b5f0-4b5e-b0a0-f5151c353825",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e866549e-38cf-3b98-a0b1-a483e275d261"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1080/10934520600966177",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "Shape",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Gamma phase"
+  },
+  "effects": [
+    {
+      "endpoint": "SHAPE",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Gamma phase"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5.json b/test/data/enm/study-NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5.json
new file mode 100644
index 0000000..0657cb5
--- /dev/null
+++ b/test/data/enm/study-NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5.json
@@ -0,0 +1,52 @@
+{
+  "uuid": "NWKI-fda09e56-a29d-43ed-9863-8c0f8cbe0261",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e93603a1-8e0d-372a-8acf-48533b86ecb5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es051043o",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "UNKNOWN_TOXICITY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "7.99 Toxicity (other)"
+    },
+    "endpoint": "Concentration in culture medium",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Concentration_in_culture_medium",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/g",
+        "loValue": 1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6.json b/test/data/enm/study-NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6.json
new file mode 100644
index 0000000..7cd5346
--- /dev/null
+++ b/test/data/enm/study-NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-e8912d4d-3491-46ef-8171-8fe1442e9136",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-e93a9eb3-83df-3522-b417-7b3a379054a6"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Diameter",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Diameter",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 9.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ea2bb63b-fd2a-32c2-a41a-d0280abaf29f.json b/test/data/enm/study-NWKI-ea2bb63b-fd2a-32c2-a41a-d0280abaf29f.json
new file mode 100644
index 0000000..bf2dfb2
--- /dev/null
+++ b/test/data/enm/study-NWKI-ea2bb63b-fd2a-32c2-a41a-d0280abaf29f.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-e147c87e-1b3f-4f86-96b9-20917e46a195",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ea2bb63b-fd2a-32c2-a41a-d0280abaf29f"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 3.51
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ea48c37d-840a-30d2-9740-1198a7e2c3b6.json b/test/data/enm/study-NWKI-ea48c37d-840a-30d2-9740-1198a7e2c3b6.json
new file mode 100644
index 0000000..009e69b
--- /dev/null
+++ b/test/data/enm/study-NWKI-ea48c37d-840a-30d2-9740-1198a7e2c3b6.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-f7a33447-5ffe-43d7-a7cd-744d88a99dde",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ea48c37d-840a-30d2-9740-1198a7e2c3b6"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "Surface Area",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+        "Remark": null
+      },
+      "result": {
+        "unit": "m^2/g",
+        "loQualifier": ">=",
+        "loValue": 175,
+        "upQualifier": "<=",
+        "upValue": 225
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ec00c05f-0b35-3c5a-b16f-7a3560213764.json b/test/data/enm/study-NWKI-ec00c05f-0b35-3c5a-b16f-7a3560213764.json
new file mode 100644
index 0000000..af5b6a2
--- /dev/null
+++ b/test/data/enm/study-NWKI-ec00c05f-0b35-3c5a-b16f-7a3560213764.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-f70949ca-c8fc-4c53-9289-cfb49bbe721b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ec00c05f-0b35-3c5a-b16f-7a3560213764"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -9.34
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-eccbd5c0-7cdb-3dc5-b9e3-8a7e17b3915a.json b/test/data/enm/study-NWKI-eccbd5c0-7cdb-3dc5-b9e3-8a7e17b3915a.json
new file mode 100644
index 0000000..20eaad8
--- /dev/null
+++ b/test/data/enm/study-NWKI-eccbd5c0-7cdb-3dc5-b9e3-8a7e17b3915a.json
@@ -0,0 +1,62 @@
+{
+  "uuid": "NWKI-96837237-0aba-461d-be45-d3ddab98b478",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-eccbd5c0-7cdb-3dc5-b9e3-8a7e17b3915a"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nl0730155",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 6.5
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -67.2
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ed06c39e-c7f2-3173-bd74-35b8257544b5.json b/test/data/enm/study-NWKI-ed06c39e-c7f2-3173-bd74-35b8257544b5.json
new file mode 100644
index 0000000..58d38c8
--- /dev/null
+++ b/test/data/enm/study-NWKI-ed06c39e-c7f2-3173-bd74-35b8257544b5.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-c84603a4-4444-4b84-b8e8-c7f3ca1c0bf0",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ed06c39e-c7f2-3173-bd74-35b8257544b5"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 20,
+        "upQualifier": "<=",
+        "upValue": 24
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ede00e9f-201f-33c9-9191-8dbf67fcf1b1.json b/test/data/enm/study-NWKI-ede00e9f-201f-33c9-9191-8dbf67fcf1b1.json
new file mode 100644
index 0000000..bd4ef7c
--- /dev/null
+++ b/test/data/enm/study-NWKI-ede00e9f-201f-33c9-9191-8dbf67fcf1b1.json
@@ -0,0 +1,73 @@
+{
+  "uuid": "NWKI-3f4dfa1e-e8c4-43db-b079-7769a06576ee",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ede00e9f-201f-33c9-9191-8dbf67fcf1b1"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "COOH-2DAmphPolymer"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "COOH"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "O=CO[H]"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "COOH"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ede0d5b5-191a-3003-ac70-a97397ea7bb2.json b/test/data/enm/study-NWKI-ede0d5b5-191a-3003-ac70-a97397ea7bb2.json
new file mode 100644
index 0000000..c35e987
--- /dev/null
+++ b/test/data/enm/study-NWKI-ede0d5b5-191a-3003-ac70-a97397ea7bb2.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "NWKI-13fbf7ad-6fc4-4b94-9a9d-3e66c612fa4c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ede0d5b5-191a-3003-ac70-a97397ea7bb2"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn301622h",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": {
+          "loValue": 7
+        }
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -45,
+        "errorValue": 4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ee237892-6184-3016-92af-b41dc14e9f9b.json b/test/data/enm/study-NWKI-ee237892-6184-3016-92af-b41dc14e9f9b.json
new file mode 100644
index 0000000..86eda33
--- /dev/null
+++ b/test/data/enm/study-NWKI-ee237892-6184-3016-92af-b41dc14e9f9b.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-3e4eb704-bc7a-4867-af2f-58c5bc77d35f",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ee237892-6184-3016-92af-b41dc14e9f9b"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe3O4"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe3O4"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "CLIO-2DNH2"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Cross-2Dlinked_dextran"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Cross-2Dlinked_dextran"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ef8660fd-e624-3a94-91bc-ad5a6e47bcf3.json b/test/data/enm/study-NWKI-ef8660fd-e624-3a94-91bc-ad5a6e47bcf3.json
new file mode 100644
index 0000000..8178033
--- /dev/null
+++ b/test/data/enm/study-NWKI-ef8660fd-e624-3a94-91bc-ad5a6e47bcf3.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "NWKI-c6ca1bd3-e533-4859-92a8-d494ba6b7a08",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ef8660fd-e624-3a94-91bc-ad5a6e47bcf3"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Fe3O4"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Fe3O4"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "ArabinoGalactanCoating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "Arabino_Galactan"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  "
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Arabino_Galactan"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f1cc0abb-2905-3699-be62-b238a21e6bad.json b/test/data/enm/study-NWKI-f1cc0abb-2905-3699-be62-b238a21e6bad.json
new file mode 100644
index 0000000..69831cf
--- /dev/null
+++ b/test/data/enm/study-NWKI-f1cc0abb-2905-3699-be62-b238a21e6bad.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-d1eaef56-d795-4c70-8af6-5c4da695891e",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f1cc0abb-2905-3699-be62-b238a21e6bad"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loQualifier": ">=",
+        "loValue": 0.0,
+        "upQualifier": "<=",
+        "upValue": 50
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f3be029d-68f6-310a-87a4-ceffee1b4eda.json b/test/data/enm/study-NWKI-f3be029d-68f6-310a-87a4-ceffee1b4eda.json
new file mode 100644
index 0000000..a5c5ef3
--- /dev/null
+++ b/test/data/enm/study-NWKI-f3be029d-68f6-310a-87a4-ceffee1b4eda.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-f348dc52-e4ed-4222-8b25-8c60b5a9b082",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f3be029d-68f6-310a-87a4-ceffee1b4eda"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Mean Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 62
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f40bfb8a-1280-35a2-866c-42b5a3ce13e7.json b/test/data/enm/study-NWKI-f40bfb8a-1280-35a2-866c-42b5a3ce13e7.json
new file mode 100644
index 0000000..6dd5838
--- /dev/null
+++ b/test/data/enm/study-NWKI-f40bfb8a-1280-35a2-866c-42b5a3ce13e7.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "NWKI-8ddf2a3a-2988-4255-8188-0c48855e7f58",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f40bfb8a-1280-35a2-866c-42b5a3ce13e7"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1038/nnano.2011.10",
+    "year": "2011",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Log Reciprocal EC50",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "Cell line": "Escherichia coli cells"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Log_Reciprocal_EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 2.64
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f4579554-a7fc-3e3f-991a-3b016207fa06.json b/test/data/enm/study-NWKI-f4579554-a7fc-3e3f-991a-3b016207fa06.json
new file mode 100644
index 0000000..3689e65
--- /dev/null
+++ b/test/data/enm/study-NWKI-f4579554-a7fc-3e3f-991a-3b016207fa06.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "NWKI-4f1aee45-76f4-4e13-9498-f3ad8a6c0883",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f4579554-a7fc-3e3f-991a-3b016207fa06"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3109/17435390.2011.587903",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 12
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f6f54a71-9459-397b-b0f7-b27538cff042.json b/test/data/enm/study-NWKI-f6f54a71-9459-397b-b0f7-b27538cff042.json
new file mode 100644
index 0000000..05a9dd3
--- /dev/null
+++ b/test/data/enm/study-NWKI-f6f54a71-9459-397b-b0f7-b27538cff042.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-c55f2582-d7a3-4263-aac5-8b336397ca1c",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f6f54a71-9459-397b-b0f7-b27538cff042"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 306,
+        "errorValue": 42
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f90f7f33-091c-3d54-b313-213083c0e052.json b/test/data/enm/study-NWKI-f90f7f33-091c-3d54-b313-213083c0e052.json
new file mode 100644
index 0000000..ef11bd4
--- /dev/null
+++ b/test/data/enm/study-NWKI-f90f7f33-091c-3d54-b313-213083c0e052.json
@@ -0,0 +1,59 @@
+{
+  "uuid": "NWKI-0b35977c-affa-4eb8-9861-35beca1a42ad",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f90f7f33-091c-3d54-b313-213083c0e052"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1039/C4FD00117F",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "Å",
+        "loQualifier": ">=",
+        "loValue": 25,
+        "upQualifier": "<=",
+        "upValue": 30
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f926951f-587c-3206-88c9-bd92614da153.json b/test/data/enm/study-NWKI-f926951f-587c-3206-88c9-bd92614da153.json
new file mode 100644
index 0000000..c805764
--- /dev/null
+++ b/test/data/enm/study-NWKI-f926951f-587c-3206-88c9-bd92614da153.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-8955d52a-7973-44c8-be98-9b43bb1e135b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f926951f-587c-3206-88c9-bd92614da153"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/nn3010087",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 193,
+        "errorValue": 90
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-f9f316e8-e8a9-37f9-877f-86519b3af20e.json b/test/data/enm/study-NWKI-f9f316e8-e8a9-37f9-877f-86519b3af20e.json
new file mode 100644
index 0000000..9ad215b
--- /dev/null
+++ b/test/data/enm/study-NWKI-f9f316e8-e8a9-37f9-877f-86519b3af20e.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-fa9d23f2-583d-433a-8e54-b769125b6eac",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-f9f316e8-e8a9-37f9-877f-86519b3af20e"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1073/pnas.0802878105",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": null,
+        "loValue": -9.46
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce.json b/test/data/enm/study-NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce.json
new file mode 100644
index 0000000..448bf80
--- /dev/null
+++ b/test/data/enm/study-NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce.json
@@ -0,0 +1,57 @@
+{
+  "uuid": "NWKI-7d72e67e-e739-4b03-bd83-a64ee99ea87b",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-fc00f3ef-464d-32d3-9d12-7e78d25db6ce"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Particle Size",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 4.98,
+        "errorValue": 0.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-fd891814-04d2-30bc-a0b6-cc3149bf75ec.json b/test/data/enm/study-NWKI-fd891814-04d2-30bc-a0b6-cc3149bf75ec.json
new file mode 100644
index 0000000..aa6c615
--- /dev/null
+++ b/test/data/enm/study-NWKI-fd891814-04d2-30bc-a0b6-cc3149bf75ec.json
@@ -0,0 +1,60 @@
+{
+  "uuid": "NWKI-f7f637bc-76dc-43a5-92ed-d770c4e059dc",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-fd891814-04d2-30bc-a0b6-cc3149bf75ec"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1021/es9016975",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "Zeta Potential",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "TESTMAT_FORM": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+        "MEDIUM": null,
+        "Remark": null,
+        "pH": null
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 12
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-fdab53f4-57f3-3501-9bfc-a4ae95c4ec44.json b/test/data/enm/study-NWKI-fdab53f4-57f3-3501-9bfc-a4ae95c4ec44.json
new file mode 100644
index 0000000..33cac40
--- /dev/null
+++ b/test/data/enm/study-NWKI-fdab53f4-57f3-3501-9bfc-a4ae95c4ec44.json
@@ -0,0 +1,61 @@
+{
+  "uuid": "NWKI-e9f56dd0-29d1-4ddc-a4fe-6c740f8a07de",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-fdab53f4-57f3-3501-9bfc-a4ae95c4ec44"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3762/bjnano.5.151",
+    "year": "2014",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "Percentage Viable Cells",
+    "guideline": [
+      "MTT reduction assay"
+    ]
+  },
+  "parameters": {
+    "Cell line": "Colon HT29",
+    "Method type": "MTT reduction assay"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "Percentage_Viable_Cells",
+      "conditions": {
+        "Doses/concentrations": {
+          "loValue": 60,
+          "unit": "µg/mL"
+        },
+        "Incubation Time": {
+          "loValue": 8
+        }
+      },
+      "result": {
+        "unit": null,
+        "loValue": 20
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-fe8fe744-ea1f-3841-9a6d-f81be44651a8.json b/test/data/enm/study-NWKI-fe8fe744-ea1f-3841-9a6d-f81be44651a8.json
new file mode 100644
index 0000000..ccdce90
--- /dev/null
+++ b/test/data/enm/study-NWKI-fe8fe744-ea1f-3841-9a6d-f81be44651a8.json
@@ -0,0 +1,93 @@
+{
+  "uuid": "NWKI-449dbb75-83c8-4f54-8208-3b0f7093ddc5",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-fe8fe744-ea1f-3841-9a6d-f81be44651a8"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SURFACE_CHEMISTRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0000015",
+      "title": "4.30 Nanomaterial surface chemistry"
+    },
+    "endpoint": "Unknown",
+    "guideline": [
+      ""
+    ]
+  },
+  "parameters": {
+    "DATA_GATHERING_INSTRUMENTS": null,
+    "Method details": null,
+    "SAMPLING": null,
+    "Type of method": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": null,
+        "DESCRIPTION": null,
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "Ag"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "CORE"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "Ag"
+      }
+    },
+    {
+      "endpoint": "ATOMIC COMPOSITION",
+      "conditions": {
+        "COATING_DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "TMATCoating"
+        },
+        "DESCRIPTION": {
+          "loQualifier": "  ",
+          "loValue": "TMAT"
+        },
+        "ELEMENT_OR_GROUP": {
+          "loQualifier": "  ",
+          "loValue": "SCC[N+](C)(C)C.[I-]"
+        },
+        "Remark": null,
+        "TYPE": {
+          "loQualifier": "  ",
+          "loValue": "COATING"
+        }
+      },
+      "result": {
+        "unit": null,
+        "textValue": "TMAT"
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ff480524-2eb0-39e2-a449-47c026f09eb9.json b/test/data/enm/study-NWKI-ff480524-2eb0-39e2-a449-47c026f09eb9.json
new file mode 100644
index 0000000..92f4a62
--- /dev/null
+++ b/test/data/enm/study-NWKI-ff480524-2eb0-39e2-a449-47c026f09eb9.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-42eeeb5b-e44c-4039-884d-367249af0038",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ff480524-2eb0-39e2-a449-47c026f09eb9"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": null,
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Hydrodynamic size",
+    "guideline": [
+      "DLS"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "DLS",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "MASS MEDIAN AERODYNAMIC DIAMETER",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 185,
+        "errorValue": 12
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-NWKI-ff85c0ea-c908-35c8-9f1c-bfd037800a31.json b/test/data/enm/study-NWKI-ff85c0ea-c908-35c8-9f1c-bfd037800a31.json
new file mode 100644
index 0000000..d477778
--- /dev/null
+++ b/test/data/enm/study-NWKI-ff85c0ea-c908-35c8-9f1c-bfd037800a31.json
@@ -0,0 +1,58 @@
+{
+  "uuid": "NWKI-e33e16a3-e454-4cb2-bcc4-38d655c6eebd",
+  "owner": {
+    "substance": {
+      "uuid": "NWKI-ff85c0ea-c908-35c8-9f1c-bfd037800a31"
+    },
+    "company": {
+      "uuid": "NWKI-9f4e86d0-c85d-3e83-8249-a856659087da",
+      "name": "NanoWiki"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.3762/bjnano.5.151",
+    "year": "0",
+    "owner": "NanoWiki"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "Primary Particle Size",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "DISTRIBUTION_TYPE": null,
+    "Method type": "TEM",
+    "TESTMAT_FORM": null
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PARTICLE SIZE",
+      "conditions": {
+        "Remark": null,
+        "SEQ_NUM": null
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 31.2,
+        "errorValue": 4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-00cd0ac9-9adc-38a5-9520-89ddd591f75f.json b/test/data/enm/study-XLSX-00cd0ac9-9adc-38a5-9520-89ddd591f75f.json
new file mode 100644
index 0000000..a646b45
--- /dev/null
+++ b/test/data/enm/study-XLSX-00cd0ac9-9adc-38a5-9520-89ddd591f75f.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "XLSX-93fb9d3f-15ff-4344-858f-802666bf44c2",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-00cd0ac9-9adc-38a5-9520-89ddd591f75f"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "192",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "192",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loQualifier": ">=",
+        "loValue": 4.2,
+        "upQualifier": "<=",
+        "upValue": 4.4
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-0bfa2e41-c6b6-3cbf-8a1e-73bf006768ab.json b/test/data/enm/study-XLSX-0bfa2e41-c6b6-3cbf-8a1e-73bf006768ab.json
new file mode 100644
index 0000000..ef4e853
--- /dev/null
+++ b/test/data/enm/study-XLSX-0bfa2e41-c6b6-3cbf-8a1e-73bf006768ab.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-ee2950ad-e9ac-487f-990d-3846eaa6b868",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-0bfa2e41-c6b6-3cbf-8a1e-73bf006768ab"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "026",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "026",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "round"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-0d71a921-0e8d-3f25-8deb-20478b7e884b.json b/test/data/enm/study-XLSX-0d71a921-0e8d-3f25-8deb-20478b7e884b.json
new file mode 100644
index 0000000..a30e485
--- /dev/null
+++ b/test/data/enm/study-XLSX-0d71a921-0e8d-3f25-8deb-20478b7e884b.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f752a9e6-816d-4d83-8211-55fef5b0d24e",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-0d71a921-0e8d-3f25-8deb-20478b7e884b"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "127",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "127",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -32
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-12620892-23e5-37f4-9644-a82c4240d695.json b/test/data/enm/study-XLSX-12620892-23e5-37f4-9644-a82c4240d695.json
new file mode 100644
index 0000000..a1d3fb5
--- /dev/null
+++ b/test/data/enm/study-XLSX-12620892-23e5-37f4-9644-a82c4240d695.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-7801fc1f-f78e-439b-86d8-605aac5829f9",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-12620892-23e5-37f4-9644-a82c4240d695"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "150",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "150",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "elongated and rounded"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-190fb54d-9b65-3d58-b65e-b3aae9a1f182.json b/test/data/enm/study-XLSX-190fb54d-9b65-3d58-b65e-b3aae9a1f182.json
new file mode 100644
index 0000000..01c8a62
--- /dev/null
+++ b/test/data/enm/study-XLSX-190fb54d-9b65-3d58-b65e-b3aae9a1f182.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f861ae7e-cfc8-4406-b8c1-2bab45c9be8f",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-190fb54d-9b65-3d58-b65e-b3aae9a1f182"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "154",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "154",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 99
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-1a8410a0-279c-3e82-bdfb-ce96b534df9b.json b/test/data/enm/study-XLSX-1a8410a0-279c-3e82-bdfb-ce96b534df9b.json
new file mode 100644
index 0000000..c5395bc
--- /dev/null
+++ b/test/data/enm/study-XLSX-1a8410a0-279c-3e82-bdfb-ce96b534df9b.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-c324c907-a6cb-4c9f-aa3b-c19f186edf94",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-1a8410a0-279c-3e82-bdfb-ce96b534df9b"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "020",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "020",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "sphere"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-251091e3-55d1-36b3-854c-d1933ec46461.json b/test/data/enm/study-XLSX-251091e3-55d1-36b3-854c-d1933ec46461.json
new file mode 100644
index 0000000..d4165b8
--- /dev/null
+++ b/test/data/enm/study-XLSX-251091e3-55d1-36b3-854c-d1933ec46461.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-e9bee75e-8347-4f49-ab8d-f76ca4a4369c",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-251091e3-55d1-36b3-854c-d1933ec46461"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "027",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "027",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -50.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-254d54ae-e3ba-36d9-8dbd-c84d2296bb24.json b/test/data/enm/study-XLSX-254d54ae-e3ba-36d9-8dbd-c84d2296bb24.json
new file mode 100644
index 0000000..587a09c
--- /dev/null
+++ b/test/data/enm/study-XLSX-254d54ae-e3ba-36d9-8dbd-c84d2296bb24.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "XLSX-a935b824-81e4-4226-8471-1ea5ee9a1462",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-254d54ae-e3ba-36d9-8dbd-c84d2296bb24"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "142",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "142",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Bath"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 21.45
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 37.6
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-295d65e6-0d6e-3987-a67f-e4482fa28c71.json b/test/data/enm/study-XLSX-295d65e6-0d6e-3987-a67f-e4482fa28c71.json
new file mode 100644
index 0000000..c4367fa
--- /dev/null
+++ b/test/data/enm/study-XLSX-295d65e6-0d6e-3987-a67f-e4482fa28c71.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-dae320b7-859e-4d08-9c88-fb29d764f2f1",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-295d65e6-0d6e-3987-a67f-e4482fa28c71"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "097",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "097",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "16HBE",
+    "Dispersion protocol": "Stirring",
+    "Exposure duration,h": 48,
+    "Serum concentration,%": 0
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 688.979
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1269.72
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 23.23
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-2acfa382-5109-3e49-9fd4-ef8d139be4b2.json b/test/data/enm/study-XLSX-2acfa382-5109-3e49-9fd4-ef8d139be4b2.json
new file mode 100644
index 0000000..c5d6e67
--- /dev/null
+++ b/test/data/enm/study-XLSX-2acfa382-5109-3e49-9fd4-ef8d139be4b2.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f5800c94-652b-419f-b812-9446748af04c",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-2acfa382-5109-3e49-9fd4-ef8d139be4b2"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "103",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "103",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -40
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-2aef353b-440f-32a7-8447-1974997a69a8.json b/test/data/enm/study-XLSX-2aef353b-440f-32a7-8447-1974997a69a8.json
new file mode 100644
index 0000000..5f8dd8a
--- /dev/null
+++ b/test/data/enm/study-XLSX-2aef353b-440f-32a7-8447-1974997a69a8.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "XLSX-ac16e65e-a24a-4453-8caf-c080a91c3fd2",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-2aef353b-440f-32a7-8447-1974997a69a8"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "190",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "190",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Tip"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 39
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 42
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-2ca46b71-491d-3e73-9b4c-3fb885705274.json b/test/data/enm/study-XLSX-2ca46b71-491d-3e73-9b4c-3fb885705274.json
new file mode 100644
index 0000000..026cfa6
--- /dev/null
+++ b/test/data/enm/study-XLSX-2ca46b71-491d-3e73-9b4c-3fb885705274.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "XLSX-f34d9633-f73f-454a-91ea-ef756cb9ade4",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-2ca46b71-491d-3e73-9b4c-3fb885705274"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "157",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "157",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Vortexing"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "SIZE IN SITU",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 465
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-36cbb933-ec3a-3d8b-b80f-0d5b6e76edc5.json b/test/data/enm/study-XLSX-36cbb933-ec3a-3d8b-b80f-0d5b6e76edc5.json
new file mode 100644
index 0000000..a1026a8
--- /dev/null
+++ b/test/data/enm/study-XLSX-36cbb933-ec3a-3d8b-b80f-0d5b6e76edc5.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-e3b26a17-3886-4b42-9f8b-51a75c92d549",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-36cbb933-ec3a-3d8b-b80f-0d5b6e76edc5"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "028",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "028",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -43.8
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-38666e26-8f8e-37a4-b97c-728a1e5aa0f2.json b/test/data/enm/study-XLSX-38666e26-8f8e-37a4-b97c-728a1e5aa0f2.json
new file mode 100644
index 0000000..181bf70
--- /dev/null
+++ b/test/data/enm/study-XLSX-38666e26-8f8e-37a4-b97c-728a1e5aa0f2.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-e56d0702-5753-4c06-91bc-637bf5355ce3",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-38666e26-8f8e-37a4-b97c-728a1e5aa0f2"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "038",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "038",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "highly bend, entangled"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 125
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-3dac4f9c-8c47-3085-9781-e70583adb12f.json b/test/data/enm/study-XLSX-3dac4f9c-8c47-3085-9781-e70583adb12f.json
new file mode 100644
index 0000000..09fc445
--- /dev/null
+++ b/test/data/enm/study-XLSX-3dac4f9c-8c47-3085-9781-e70583adb12f.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f4aabeaa-a7f4-4dfe-ab3b-f554a313d175",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-3dac4f9c-8c47-3085-9781-e70583adb12f"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "167",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "167",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Mainly 2 euhedral morphologies: aspect ratio of 1 (20–250 nm and 400 nm) and 2:7,5 (50-350 nm)"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.68
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-3ff81e94-3d5d-3e58-a761-b0bd7c94de3b.json b/test/data/enm/study-XLSX-3ff81e94-3d5d-3e58-a761-b0bd7c94de3b.json
new file mode 100644
index 0000000..db56049
--- /dev/null
+++ b/test/data/enm/study-XLSX-3ff81e94-3d5d-3e58-a761-b0bd7c94de3b.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f61dd9c6-563c-40a5-8fcc-52c9f4ad7590",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-3ff81e94-3d5d-3e58-a761-b0bd7c94de3b"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "107",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "107",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -40
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-498d791a-4c0f-3eab-bb2b-bd554637d9af.json b/test/data/enm/study-XLSX-498d791a-4c0f-3eab-bb2b-bd554637d9af.json
new file mode 100644
index 0000000..f720af4
--- /dev/null
+++ b/test/data/enm/study-XLSX-498d791a-4c0f-3eab-bb2b-bd554637d9af.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-e7aa3d69-db5c-4a6f-b562-22643a5eaae8",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-498d791a-4c0f-3eab-bb2b-bd554637d9af"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "135",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "135",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Two structures found; type 1 show agglomerates in the 50–1500 nm range"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.524
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-4ceef1bf-5f19-34e7-9d3d-51d65be297d7.json b/test/data/enm/study-XLSX-4ceef1bf-5f19-34e7-9d3d-51d65be297d7.json
new file mode 100644
index 0000000..f8cf42c
--- /dev/null
+++ b/test/data/enm/study-XLSX-4ceef1bf-5f19-34e7-9d3d-51d65be297d7.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-fff71a73-f25e-4783-8660-bdb3aa52cd47",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-4ceef1bf-5f19-34e7-9d3d-51d65be297d7"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "176",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "176",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "THP-1 macrophage",
+    "Dispersion protocol": "Tip",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 10.218
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 15.137
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 0.197
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-53ac37fa-9e10-3f71-9d74-bc47f28880ff.json b/test/data/enm/study-XLSX-53ac37fa-9e10-3f71-9d74-bc47f28880ff.json
new file mode 100644
index 0000000..81f4afe
--- /dev/null
+++ b/test/data/enm/study-XLSX-53ac37fa-9e10-3f71-9d74-bc47f28880ff.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "XLSX-dbc66ad9-b950-431f-8e0b-e8a185bcfc5a",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-53ac37fa-9e10-3f71-9d74-bc47f28880ff"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "185",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "185",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Tip"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 16
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 40
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-56c58705-05c6-304f-bb42-a3a328e06319.json b/test/data/enm/study-XLSX-56c58705-05c6-304f-bb42-a3a328e06319.json
new file mode 100644
index 0000000..e998db8
--- /dev/null
+++ b/test/data/enm/study-XLSX-56c58705-05c6-304f-bb42-a3a328e06319.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "XLSX-e2d1e541-119d-48fd-811e-ef18a2f4611c",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-56c58705-05c6-304f-bb42-a3a328e06319"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "182",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "182",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Tip"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 106
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 178
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-58c9f610-0fef-3009-8112-6ea05d863644.json b/test/data/enm/study-XLSX-58c9f610-0fef-3009-8112-6ea05d863644.json
new file mode 100644
index 0000000..861bbdd
--- /dev/null
+++ b/test/data/enm/study-XLSX-58c9f610-0fef-3009-8112-6ea05d863644.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-d7614e23-9ea3-4475-ac89-6a75c3626a3a",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-58c9f610-0fef-3009-8112-6ea05d863644"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "168",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1911_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1911",
+      "title": "NPO_1911 MTT Assay"
+    },
+    "endpoint": "168",
+    "guideline": [
+      "MTT"
+    ]
+  },
+  "parameters": {
+    "Cell line": "mES",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 240,
+    "Serum concentration,%": 0.15
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 3.698
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 5.866
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 0.087
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-5a273d77-e518-3523-b377-c06f08182be1.json b/test/data/enm/study-XLSX-5a273d77-e518-3523-b377-c06f08182be1.json
new file mode 100644
index 0000000..59cef1a
--- /dev/null
+++ b/test/data/enm/study-XLSX-5a273d77-e518-3523-b377-c06f08182be1.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-ea63f4ea-7a65-4ecb-b51d-20ce01e6fe53",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-5a273d77-e518-3523-b377-c06f08182be1"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "021",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0010001_SECTION",
+      "term": "http://purl.bioontology.org/ontology/bao#BAO_0010001",
+      "title": "BAO_0010001 ATP Assay"
+    },
+    "endpoint": "021",
+    "guideline": [
+      "ATP"
+    ]
+  },
+  "parameters": {
+    "Cell line": "A549",
+    "Dispersion protocol": "Vortexing",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 23.667
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 56.684
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1.321
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-5cd11301-7cf1-3402-aaf8-853e5ed8ccde.json b/test/data/enm/study-XLSX-5cd11301-7cf1-3402-aaf8-853e5ed8ccde.json
new file mode 100644
index 0000000..570e57e
--- /dev/null
+++ b/test/data/enm/study-XLSX-5cd11301-7cf1-3402-aaf8-853e5ed8ccde.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-cde8e68b-2c34-4b2b-967f-81fef93db218",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-5cd11301-7cf1-3402-aaf8-853e5ed8ccde"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "177",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "177",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "NCI-H292",
+    "Dispersion protocol": "Vortexing",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 4.27
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 4.497
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 0.009
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-5d07b463-d3a8-35b1-826e-076f9f2328c8.json b/test/data/enm/study-XLSX-5d07b463-d3a8-35b1-826e-076f9f2328c8.json
new file mode 100644
index 0000000..38e4478
--- /dev/null
+++ b/test/data/enm/study-XLSX-5d07b463-d3a8-35b1-826e-076f9f2328c8.json
@@ -0,0 +1,72 @@
+{
+  "uuid": "XLSX-e25fcdda-3935-448e-a5bf-31932f003ed4",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-5d07b463-d3a8-35b1-826e-076f9f2328c8"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "081",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "081",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Stirring"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 5
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 12
+      }
+    },
+    {
+      "endpoint": "SIZE IN SITU",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 129
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-5d7807f7-a13b-392f-88af-fe7885a67502.json b/test/data/enm/study-XLSX-5d7807f7-a13b-392f-88af-fe7885a67502.json
new file mode 100644
index 0000000..4650fe2
--- /dev/null
+++ b/test/data/enm/study-XLSX-5d7807f7-a13b-392f-88af-fe7885a67502.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "XLSX-cb77a276-f477-4d81-8823-5786a7014f6c",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-5d7807f7-a13b-392f-88af-fe7885a67502"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "170",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "170",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": "m2/g",
+        "loQualifier": ">=",
+        "loValue": 11.8,
+        "upQualifier": "<=",
+        "upValue": 13
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-5e44448d-216f-3b91-891a-a7e1de030a13.json b/test/data/enm/study-XLSX-5e44448d-216f-3b91-891a-a7e1de030a13.json
new file mode 100644
index 0000000..0cecd13
--- /dev/null
+++ b/test/data/enm/study-XLSX-5e44448d-216f-3b91-891a-a7e1de030a13.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "XLSX-fe6bb3ce-f1ea-4e4f-a781-9c4b439e5887",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-5e44448d-216f-3b91-891a-a7e1de030a13"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "186",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "186",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Tip"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 14
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 22
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-5efaa24e-6eb5-3f1f-a9f4-680bc92364d6.json b/test/data/enm/study-XLSX-5efaa24e-6eb5-3f1f-a9f4-680bc92364d6.json
new file mode 100644
index 0000000..2052a32
--- /dev/null
+++ b/test/data/enm/study-XLSX-5efaa24e-6eb5-3f1f-a9f4-680bc92364d6.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-c1cb4d7b-333a-4ca0-9a9e-82f77d809b73",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-5efaa24e-6eb5-3f1f-a9f4-680bc92364d6"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "121",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "121",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "HaCaT",
+    "Dispersion protocol": "Stirring",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 16.831
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 50.546
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1.349
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-64e97bde-be4b-34fb-b216-85724e66b02a.json b/test/data/enm/study-XLSX-64e97bde-be4b-34fb-b216-85724e66b02a.json
new file mode 100644
index 0000000..7b1df01
--- /dev/null
+++ b/test/data/enm/study-XLSX-64e97bde-be4b-34fb-b216-85724e66b02a.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-a0b34fb3-ccd4-4dad-b1ff-4923745745cd",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-64e97bde-be4b-34fb-b216-85724e66b02a"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "153",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "153",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 40
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-673c8355-a823-3bf2-a319-0d8af43e4d90.json b/test/data/enm/study-XLSX-673c8355-a823-3bf2-a319-0d8af43e4d90.json
new file mode 100644
index 0000000..c9a8046
--- /dev/null
+++ b/test/data/enm/study-XLSX-673c8355-a823-3bf2-a319-0d8af43e4d90.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-fb1ee400-bfaa-4ac1-bd6f-801e8ead9842",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-673c8355-a823-3bf2-a319-0d8af43e4d90"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "148",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1709_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1709",
+      "title": "NPO_1709 LDH Release Assay"
+    },
+    "endpoint": "148",
+    "guideline": [
+      "LDH"
+    ]
+  },
+  "parameters": {
+    "Cell line": "THP-1 macrophage",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 223.966
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 310.968
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 3.48
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-6fac9681-a5c7-337c-9e35-87c04579f0e6.json b/test/data/enm/study-XLSX-6fac9681-a5c7-337c-9e35-87c04579f0e6.json
new file mode 100644
index 0000000..b3a8558
--- /dev/null
+++ b/test/data/enm/study-XLSX-6fac9681-a5c7-337c-9e35-87c04579f0e6.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-c25ead1f-7e35-4a65-bfc6-44ae04c3ee8a",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-6fac9681-a5c7-337c-9e35-87c04579f0e6"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "082",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "082",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "A549",
+    "Dispersion protocol": "Stirring",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 603.245
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 3500.754
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 115.9
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-7011cea0-1011-3f8b-9e8a-b3289fed836a.json b/test/data/enm/study-XLSX-7011cea0-1011-3f8b-9e8a-b3289fed836a.json
new file mode 100644
index 0000000..aac3386
--- /dev/null
+++ b/test/data/enm/study-XLSX-7011cea0-1011-3f8b-9e8a-b3289fed836a.json
@@ -0,0 +1,1016 @@
+{
+  "uuid": "XLSX-8780e971-9a1e-4c96-b7dd-df6906f459c1",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-7011cea0-1011-3f8b-9e8a-b3289fed836a"
+    },
+    "company": {
+      "uuid": "XLSX-4bb81f08-059d-32ad-b5fd-71c6bcc6e0db",
+      "name": "FP7 MARINA"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1371/journal.pone.0127174",
+    "year": "2015",
+    "owner": "P32 - KI"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1709_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1709",
+      "title": "NPO_1709 LDH Release Assay"
+    },
+    "endpoint": "Cell viability - cell membrane damage: Lactate dehydrogenase assay (LDH)  (CytoTox 96® Non-radioactive cytotoxicity assay - Promega, G1780) ",
+    "guideline": [
+      "Cytotoxicity using human monocyte-derived macrophages (HMDM)"
+    ]
+  },
+  "parameters": {
+    "CHMO:0002774": "N",
+    "CLO_0000031": "HMDM",
+    "CLO_0000031 EFO_0004443": "Karolinska University Hospital, Stockholm, Sweden - buffy coats from healthy adult blood donors ",
+    "Cell culture conditions - Serum": "FBS (Gibco, 10500) ",
+    "Cell culture conditions - Serum concentration in growth medium": 0.1,
+    "Cell culture conditions - Serum concentration in treatment medium": "0,05%",
+    "Cell line/Type - Full name": "Primary human monocyte-derived macrophages (HMDM)",
+    "Dispersion agent": "water with 0,05% BSA",
+    "NPO_1952": "Y",
+    "NPO_1961": "Y",
+    "NPO_1969 OBI_0000272": "NANOGENOTOX Dispersion protocol (http://www.nanogenotox.eu/files/PDF/web%20nanogenotox%20dispersion%20protocol.pdf) ",
+    "OBI_0001911 BAO_0000114": "RPMI (Sigma, R0833)"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.294
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 95.395
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 93.312
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.568
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 102.257
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 96.158
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 102.301
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 98.551
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 98.341
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 98.816
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
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+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
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+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 97.54
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100.042
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 75,
+          "unit": "µg/ml"
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+        "Replicate": "Replicate 2",
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+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 98.508
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.204
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 91.546
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+        "Concentration": {
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+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.817
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 93.689
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 95.606
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 98.021
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+        "Concentration": {
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+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 95.369
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100.478
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+        "Concentration": {
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+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
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+        "unit": "%",
+        "loValue": 100.029
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+          "loValue": 5,
+          "unit": "µg/ml"
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 97.715
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+          "loValue": 10,
+          "unit": "µg/ml"
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+        "Replicate": "Replicate 1",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.152
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+          "loValue": 25,
+          "unit": "µg/ml"
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+        "Replicate": "Replicate 1",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.331
+      }
+    },
+    {
+      "endpoint": "% cell viability",
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+        "Concentration": {
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+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.293
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
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+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 82.224
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 83.231
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
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+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 90.843
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
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+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 86.566
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 82.579
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 84.673
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 89.69
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
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+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 91.093
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
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+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 92.472
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
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+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 102.679
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 98.516
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 95.758
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.941
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.554
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 83.131
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 84.513
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-7394378e-b717-3418-a3f7-27db3cbbd8d0.json b/test/data/enm/study-XLSX-7394378e-b717-3418-a3f7-27db3cbbd8d0.json
new file mode 100644
index 0000000..b421466
--- /dev/null
+++ b/test/data/enm/study-XLSX-7394378e-b717-3418-a3f7-27db3cbbd8d0.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-fdcbf34a-59a7-4533-beab-0a38696cd639",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-7394378e-b717-3418-a3f7-27db3cbbd8d0"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "035",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "035",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": "(m2/g)",
+        "loValue": 140.46
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-75ca4d9f-546f-3d7d-a24e-d0d54809cbb3.json b/test/data/enm/study-XLSX-75ca4d9f-546f-3d7d-a24e-d0d54809cbb3.json
new file mode 100644
index 0000000..87b1ed9
--- /dev/null
+++ b/test/data/enm/study-XLSX-75ca4d9f-546f-3d7d-a24e-d0d54809cbb3.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "XLSX-e0924b3c-5b20-4c17-b35b-9d1487aaf32c",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-75ca4d9f-546f-3d7d-a24e-d0d54809cbb3"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "039",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "039",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Vortexing"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 11
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 1372
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-7677801c-4895-3ffd-807a-832c589341df.json b/test/data/enm/study-XLSX-7677801c-4895-3ffd-807a-832c589341df.json
new file mode 100644
index 0000000..58ba7a9
--- /dev/null
+++ b/test/data/enm/study-XLSX-7677801c-4895-3ffd-807a-832c589341df.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-fd6f9dd1-b20f-45bc-95e1-e9aa08913cd1",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-7677801c-4895-3ffd-807a-832c589341df"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "151",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1911_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1911",
+      "title": "NPO_1911 MTT Assay"
+    },
+    "endpoint": "151",
+    "guideline": [
+      "MTT"
+    ]
+  },
+  "parameters": {
+    "Cell line": "NIH/3T3",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 144,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 49.906
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 107.192
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 2.291
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-7d5a7a1b-5069-3256-b796-2361afcf3bfe.json b/test/data/enm/study-XLSX-7d5a7a1b-5069-3256-b796-2361afcf3bfe.json
new file mode 100644
index 0000000..b623efb
--- /dev/null
+++ b/test/data/enm/study-XLSX-7d5a7a1b-5069-3256-b796-2361afcf3bfe.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-c831c8c7-d8df-48b6-be26-24aeab85871e",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-7d5a7a1b-5069-3256-b796-2361afcf3bfe"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "032",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "032",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 298
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-7e2b0550-595b-3427-b6f3-b84211a5c402.json b/test/data/enm/study-XLSX-7e2b0550-595b-3427-b6f3-b84211a5c402.json
new file mode 100644
index 0000000..6f74bb6
--- /dev/null
+++ b/test/data/enm/study-XLSX-7e2b0550-595b-3427-b6f3-b84211a5c402.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f9df1a98-6f38-473a-a70f-80dcdf8fa5be",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-7e2b0550-595b-3427-b6f3-b84211a5c402"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "019",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "019",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Mainly euhedral (some elongated or sub-spherical)"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-92788191-34d9-39b4-aa9c-503da51fc1a6.json b/test/data/enm/study-XLSX-92788191-34d9-39b4-aa9c-503da51fc1a6.json
new file mode 100644
index 0000000..93a877e
--- /dev/null
+++ b/test/data/enm/study-XLSX-92788191-34d9-39b4-aa9c-503da51fc1a6.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-e7dab684-dd3d-4054-a343-31706a073bf6",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-92788191-34d9-39b4-aa9c-503da51fc1a6"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "134",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1911_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1911",
+      "title": "NPO_1911 MTT Assay"
+    },
+    "endpoint": "134",
+    "guideline": [
+      "MTT"
+    ]
+  },
+  "parameters": {
+    "Cell line": "SH-SY5Y",
+    "Dispersion protocol": "Tip",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1224.819
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1575.14
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 14.013
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-93b2da85-fc0c-315f-8d3b-77f1a7776fb4.json b/test/data/enm/study-XLSX-93b2da85-fc0c-315f-8d3b-77f1a7776fb4.json
new file mode 100644
index 0000000..6917546
--- /dev/null
+++ b/test/data/enm/study-XLSX-93b2da85-fc0c-315f-8d3b-77f1a7776fb4.json
@@ -0,0 +1,1016 @@
+{
+  "uuid": "XLSX-5ce7f13f-0535-4b46-bf94-28c7566e42e6",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-93b2da85-fc0c-315f-8d3b-77f1a7776fb4"
+    },
+    "company": {
+      "uuid": "XLSX-4bb81f08-059d-32ad-b5fd-71c6bcc6e0db",
+      "name": "FP7 MARINA"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1371/journal.pone.0127174",
+    "year": "2015",
+    "owner": "P32 - KI"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1709_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1709",
+      "title": "NPO_1709 LDH Release Assay"
+    },
+    "endpoint": "Cell viability - cell membrane damage: Lactate dehydrogenase assay (LDH)  (CytoTox 96® Non-radioactive cytotoxicity assay - Promega, G1780) ",
+    "guideline": [
+      "Cytotoxicity using human monocyte-derived macrophages (HMDM)"
+    ]
+  },
+  "parameters": {
+    "CHMO:0002774": "N",
+    "CLO_0000031": "HMDM",
+    "CLO_0000031 EFO_0004443": "Karolinska University Hospital, Stockholm, Sweden - buffy coats from healthy adult blood donors ",
+    "Cell culture conditions - Serum": "FBS (Gibco, 10500) ",
+    "Cell culture conditions - Serum concentration in growth medium": 0.1,
+    "Cell culture conditions - Serum concentration in treatment medium": "0,05%",
+    "Cell line/Type - Full name": "Primary human monocyte-derived macrophages (HMDM)",
+    "Dispersion agent": "water with 0,05% BSA",
+    "NPO_1952": "Y",
+    "NPO_1961": "Y",
+    "NPO_1969 OBI_0000272": "NANOGENOTOX Dispersion protocol (http://www.nanogenotox.eu/files/PDF/web%20nanogenotox%20dispersion%20protocol.pdf) ",
+    "OBI_0001911 BAO_0000114": "RPMI (Sigma, R0833)"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 99.413
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 99.916
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 99.495
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 98.373
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 97.147
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 93.705
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 82.427
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 99.36
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 99.216
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 96.477
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 96.174
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 94.889
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 93.054
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 77.011
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 93.623
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 97.956
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 96.911
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 75.319
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 66.08
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 41.821
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 6,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 39.382
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 89.377
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 86.56
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 89.038
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 82.868
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 70.673
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 55.286
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 36.018
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 92.006
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 86.708
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 87.863
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 90.631
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 81.019
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 70.953
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 54.229
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 100
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 116.133
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 127.122
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 105.346
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 97.885
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 93.242
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 81.871
+      }
+    },
+    {
+      "endpoint": "% cell viability",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "%",
+        "loValue": 57.012
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-945d75a3-50b7-3655-8979-376d39096378.json b/test/data/enm/study-XLSX-945d75a3-50b7-3655-8979-376d39096378.json
new file mode 100644
index 0000000..778cfee
--- /dev/null
+++ b/test/data/enm/study-XLSX-945d75a3-50b7-3655-8979-376d39096378.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f680f3e9-24d8-482c-ac04-0ee2884348a4",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-945d75a3-50b7-3655-8979-376d39096378"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "031",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "031",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "highly bend"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 79
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-95020ff3-17ee-3889-8a9f-f2555dc4a930.json b/test/data/enm/study-XLSX-95020ff3-17ee-3889-8a9f-f2555dc4a930.json
new file mode 100644
index 0000000..034df7a
--- /dev/null
+++ b/test/data/enm/study-XLSX-95020ff3-17ee-3889-8a9f-f2555dc4a930.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-e12f73c6-c0a0-43b6-b377-b8e4dcf5616c",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-95020ff3-17ee-3889-8a9f-f2555dc4a930"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "004",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "004",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "average round but not as monodisperse"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-9eb0db98-07c0-37fb-9fc3-7126d72252c4.json b/test/data/enm/study-XLSX-9eb0db98-07c0-37fb-9fc3-7126d72252c4.json
new file mode 100644
index 0000000..7d2acb2
--- /dev/null
+++ b/test/data/enm/study-XLSX-9eb0db98-07c0-37fb-9fc3-7126d72252c4.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-ece2773f-4857-423d-8c0c-ad76ae1017f7",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-9eb0db98-07c0-37fb-9fc3-7126d72252c4"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "129",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "129",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "HaCaT",
+    "Dispersion protocol": "Stirring",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 37.78
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 69.956
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1.287
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-9f84408a-4414-33c9-a0f2-53bd19cf2d65.json b/test/data/enm/study-XLSX-9f84408a-4414-33c9-a0f2-53bd19cf2d65.json
new file mode 100644
index 0000000..d7e81dd
--- /dev/null
+++ b/test/data/enm/study-XLSX-9f84408a-4414-33c9-a0f2-53bd19cf2d65.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-fd583dba-17af-4d5d-b33b-99bc223cacb0",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-9f84408a-4414-33c9-a0f2-53bd19cf2d65"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "155",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "155",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 84
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-a0d9ab63-ee03-3224-984a-4bd276e3ea3a.json b/test/data/enm/study-XLSX-a0d9ab63-ee03-3224-984a-4bd276e3ea3a.json
new file mode 100644
index 0000000..7ddc8d4
--- /dev/null
+++ b/test/data/enm/study-XLSX-a0d9ab63-ee03-3224-984a-4bd276e3ea3a.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-95ced9d3-da9a-4a70-9023-75dd5ca53e4d",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-a0d9ab63-ee03-3224-984a-4bd276e3ea3a"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "143",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "143",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "elongated"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-a1b25bf2-6046-3c16-ba1c-3efb11b5a4d6.json b/test/data/enm/study-XLSX-a1b25bf2-6046-3c16-ba1c-3efb11b5a4d6.json
new file mode 100644
index 0000000..63ed797
--- /dev/null
+++ b/test/data/enm/study-XLSX-a1b25bf2-6046-3c16-ba1c-3efb11b5a4d6.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-ab328a52-255b-4273-b22e-c57d6992af2d",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-a1b25bf2-6046-3c16-ba1c-3efb11b5a4d6"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "156",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "156",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "Irregular euhedral"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1.36
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-a44564c5-1458-3e3b-aca7-d63f5221d2a8.json b/test/data/enm/study-XLSX-a44564c5-1458-3e3b-aca7-d63f5221d2a8.json
new file mode 100644
index 0000000..c11d851
--- /dev/null
+++ b/test/data/enm/study-XLSX-a44564c5-1458-3e3b-aca7-d63f5221d2a8.json
@@ -0,0 +1,63 @@
+{
+  "uuid": "XLSX-f3369e08-9403-44dd-b930-7e6ad8debaa8",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-a44564c5-1458-3e3b-aca7-d63f5221d2a8"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "183",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "PC_GRANULOMETRY_SECTION",
+      "term": "http://purl.obolibrary.org/obo/CHMO_0002119",
+      "title": "4.5 Particle size distribution (Granulometry)"
+    },
+    "endpoint": "183",
+    "guideline": [
+      "TEM"
+    ]
+  },
+  "parameters": {
+    "Dispersion protocol": "Tip"
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "PRIMARY SIZE 1ST DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 106
+      }
+    },
+    {
+      "endpoint": "PRIMARY SIZE 2ND DIMENSION",
+      "conditions": {
+      },
+      "result": {
+        "unit": "nm",
+        "loValue": 178
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-aa7e2fd6-c054-35ed-a9d9-1f40c1d179a3.json b/test/data/enm/study-XLSX-aa7e2fd6-c054-35ed-a9d9-1f40c1d179a3.json
new file mode 100644
index 0000000..15aab0b
--- /dev/null
+++ b/test/data/enm/study-XLSX-aa7e2fd6-c054-35ed-a9d9-1f40c1d179a3.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-aca70626-8237-42de-84c9-39abeeec29bf",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-aa7e2fd6-c054-35ed-a9d9-1f40c1d179a3"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "136",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1709_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1709",
+      "title": "NPO_1709 LDH Release Assay"
+    },
+    "endpoint": "136",
+    "guideline": [
+      "LDH"
+    ]
+  },
+  "parameters": {
+    "Cell line": "A549",
+    "Dispersion protocol": "Tip",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 5651.743
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 8250.276
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 103.941
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-aacdfad8-f3d3-39f2-b662-0d8084e283ef.json b/test/data/enm/study-XLSX-aacdfad8-f3d3-39f2-b662-0d8084e283ef.json
new file mode 100644
index 0000000..7a37e8c
--- /dev/null
+++ b/test/data/enm/study-XLSX-aacdfad8-f3d3-39f2-b662-0d8084e283ef.json
@@ -0,0 +1,696 @@
+{
+  "uuid": "XLSX-f9dc91ff-8f1d-4f73-962d-30cc1fe31699",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-aacdfad8-f3d3-39f2-b662-0d8084e283ef"
+    },
+    "company": {
+      "uuid": "XLSX-4bb81f08-059d-32ad-b5fd-71c6bcc6e0db",
+      "name": "FP7 MARINA"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1371/journal.pone.0127174",
+    "year": "2015",
+    "owner": "P32 - KI"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002993_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002993",
+      "title": "BAO_0002993 Cytotoxicity Assay"
+    },
+    "endpoint": "",
+    "guideline": [
+      "ELISA / TNF-α release in culture medium"
+    ]
+  },
+  "parameters": {
+    "CHMO:0002774": "Y",
+    "CLO_0000031": "HMDM (primary cells)",
+    "CLO_0000031 EFO_0004443": "ATCC",
+    "Cell culture conditions - Serum": "FBS (Gibco/413105K) ",
+    "Cell culture conditions - Serum concentration in growth medium": 0.1,
+    "Cell culture conditions - Serum concentration in treatment medium": 0.1,
+    "Cell line/Type - Full name": "human monocyte-derived macrophages (HMDM)",
+    "Dispersion agent": "water with 0,05% BSA",
+    "NPO_1952": "N",
+    "NPO_1961": "N",
+    "NPO_1969 OBI_0000272": "NANOGENOTOX Dispersion protocol (http://www.nanogenotox.eu/files/PDF/web%20nanogenotox%20dispersion%20protocol.pdf) ",
+    "OBI_0001911 BAO_0000114": "RPMI (Sigma, RNBB2729 "
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 3.092
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 28.881
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.978
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 6.298
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 1.61
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 1.562
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 1.905
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 10.723
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 0.874
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 2.347
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 3.396
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 4.599
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 9.392
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 13.846
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 15.77
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 13.103
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 9.147
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 19.641
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 21.956
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 31.124
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 24.944
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 18.364
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.807
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 10.86
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 21.04
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 18.135
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 22.527
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 29.266
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 29.534
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 25.48
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 22.79
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 21.142
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-acb82e6d-63d6-3cf4-a796-a281b1ba835f.json b/test/data/enm/study-XLSX-acb82e6d-63d6-3cf4-a796-a281b1ba835f.json
new file mode 100644
index 0000000..d517951
--- /dev/null
+++ b/test/data/enm/study-XLSX-acb82e6d-63d6-3cf4-a796-a281b1ba835f.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-d0f67857-85d3-4544-9efe-8dccb8f2f69b",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-acb82e6d-63d6-3cf4-a796-a281b1ba835f"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "010",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1709_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1709",
+      "title": "NPO_1709 LDH Release Assay"
+    },
+    "endpoint": "010",
+    "guideline": [
+      "LDH"
+    ]
+  },
+  "parameters": {
+    "Cell line": "THP-1 macrophage",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 48,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 55.73
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 163.182
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 4.298
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-ad0a7571-a887-3611-a508-f32ad71f20be.json b/test/data/enm/study-XLSX-ad0a7571-a887-3611-a508-f32ad71f20be.json
new file mode 100644
index 0000000..d97fe7e
--- /dev/null
+++ b/test/data/enm/study-XLSX-ad0a7571-a887-3611-a508-f32ad71f20be.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-c1cf764a-885c-46cd-bad1-83de62f8e04c",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-ad0a7571-a887-3611-a508-f32ad71f20be"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "076",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0010001_SECTION",
+      "term": "http://purl.bioontology.org/ontology/bao#BAO_0010001",
+      "title": "BAO_0010001 ATP Assay"
+    },
+    "endpoint": "076",
+    "guideline": [
+      "ATP"
+    ]
+  },
+  "parameters": {
+    "Cell line": "SK-OV-3",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 14.867
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 43.786
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1.157
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-ade46bc8-d87f-3f9b-afd0-11ca32e5caeb.json b/test/data/enm/study-XLSX-ade46bc8-d87f-3f9b-afd0-11ca32e5caeb.json
new file mode 100644
index 0000000..988a684
--- /dev/null
+++ b/test/data/enm/study-XLSX-ade46bc8-d87f-3f9b-afd0-11ca32e5caeb.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "XLSX-c52b866d-3b4d-4406-9124-b9dd0c30a32f",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-ade46bc8-d87f-3f9b-afd0-11ca32e5caeb"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "178",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "178",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": "m2/g",
+        "loQualifier": ">=",
+        "loValue": 14.5,
+        "upQualifier": "<=",
+        "upValue": 15.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-adf890e9-3623-3a0e-b601-11f8e5e2f3cb.json b/test/data/enm/study-XLSX-adf890e9-3623-3a0e-b601-11f8e5e2f3cb.json
new file mode 100644
index 0000000..026de90
--- /dev/null
+++ b/test/data/enm/study-XLSX-adf890e9-3623-3a0e-b601-11f8e5e2f3cb.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-f5ba28f1-d236-415d-af07-6ffe7b15585e",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-adf890e9-3623-3a0e-b601-11f8e5e2f3cb"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "013",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1709_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1709",
+      "title": "NPO_1709 LDH Release Assay"
+    },
+    "endpoint": "013",
+    "guideline": [
+      "LDH"
+    ]
+  },
+  "parameters": {
+    "Cell line": "A549",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1486.452
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 2076.856
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 23.616
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-b4e4a8e9-6d27-3218-a243-7aa30560adb1.json b/test/data/enm/study-XLSX-b4e4a8e9-6d27-3218-a243-7aa30560adb1.json
new file mode 100644
index 0000000..28c31d8
--- /dev/null
+++ b/test/data/enm/study-XLSX-b4e4a8e9-6d27-3218-a243-7aa30560adb1.json
@@ -0,0 +1,696 @@
+{
+  "uuid": "XLSX-116c7102-9677-4acb-9923-e13a326e0848",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-b4e4a8e9-6d27-3218-a243-7aa30560adb1"
+    },
+    "company": {
+      "uuid": "XLSX-4bb81f08-059d-32ad-b5fd-71c6bcc6e0db",
+      "name": "FP7 MARINA"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1371/journal.pone.0127174",
+    "year": "2015",
+    "owner": "P32 - KI"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002993_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002993",
+      "title": "BAO_0002993 Cytotoxicity Assay"
+    },
+    "endpoint": "",
+    "guideline": [
+      "ELISA / TNF-α release in culture medium"
+    ]
+  },
+  "parameters": {
+    "CHMO:0002774": "Y",
+    "CLO_0000031": "HMDM (primary cells)",
+    "CLO_0000031 EFO_0004443": "ATCC",
+    "Cell culture conditions - Serum": "FBS (Gibco/413105K) ",
+    "Cell culture conditions - Serum concentration in growth medium": 0.1,
+    "Cell culture conditions - Serum concentration in treatment medium": 0.1,
+    "Cell line/Type - Full name": "human monocyte-derived macrophages (HMDM)",
+    "Dispersion agent": "water with 0,05% BSA",
+    "NPO_1952": "N",
+    "NPO_1961": "N",
+    "NPO_1969 OBI_0000272": "NANOGENOTOX Dispersion protocol (http://www.nanogenotox.eu/files/PDF/web%20nanogenotox%20dispersion%20protocol.pdf) ",
+    "OBI_0001911 BAO_0000114": "RPMI (Sigma, RNBB2729 "
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 19.209
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 51.34
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 54.146
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 54.248
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 51.382
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 40.765
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 21.658
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 8.806
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 17.204
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 25.185
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 38.635
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 53.932
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 58.479
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 49.172
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 28.59
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 11.051
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 4.515
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 5.748
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 17.559
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 63.942
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 13.506
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 7.371
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 5.037
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 4.846
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.168
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
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+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 25.371
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 42.205
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 87.953
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 37.918
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 14.972
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 9.695
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 8.52
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-bbff7bfc-273b-3dfb-be71-5afb33113e53.json b/test/data/enm/study-XLSX-bbff7bfc-273b-3dfb-be71-5afb33113e53.json
new file mode 100644
index 0000000..aa52ed8
--- /dev/null
+++ b/test/data/enm/study-XLSX-bbff7bfc-273b-3dfb-be71-5afb33113e53.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-5897d5fa-1a6b-4b73-9c96-702bcfce3fb5",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-bbff7bfc-273b-3dfb-be71-5afb33113e53"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "022",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "022",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -35.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-c42f434e-6295-3715-8a23-ce26f87642a6.json b/test/data/enm/study-XLSX-c42f434e-6295-3715-8a23-ce26f87642a6.json
new file mode 100644
index 0000000..3034784
--- /dev/null
+++ b/test/data/enm/study-XLSX-c42f434e-6295-3715-8a23-ce26f87642a6.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-ce8d0524-da9e-4e33-8e53-79461ea52805",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-c42f434e-6295-3715-8a23-ce26f87642a6"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "188",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "188",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "THP-1 macrophage",
+    "Dispersion protocol": "Tip",
+    "Exposure duration,h": 48,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 294.088
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1462.866
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 46.751
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-ce148a7f-3da2-3fb8-9245-161eb6747522.json b/test/data/enm/study-XLSX-ce148a7f-3da2-3fb8-9245-161eb6747522.json
new file mode 100644
index 0000000..58e8ac7
--- /dev/null
+++ b/test/data/enm/study-XLSX-ce148a7f-3da2-3fb8-9245-161eb6747522.json
@@ -0,0 +1,56 @@
+{
+  "uuid": "XLSX-d76ebf13-274d-4bc2-930f-406c9486be2e",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-ce148a7f-3da2-3fb8-9245-161eb6747522"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "179",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "SPECIFIC_SURFACE_AREA_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1235",
+      "title": "4.28 Nanomaterial specific surface area"
+    },
+    "endpoint": "179",
+    "guideline": [
+      "SPECIFIC SURFACE AREA"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "SPECIFIC_SURFACE_AREA",
+      "conditions": {
+      },
+      "result": {
+        "unit": "m2/g",
+        "loQualifier": ">=",
+        "loValue": 14.5,
+        "upQualifier": "<=",
+        "upValue": 15.7
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-d3a9ce39-6c15-3e4b-a5ce-5ea23e45ff16.json b/test/data/enm/study-XLSX-d3a9ce39-6c15-3e4b-a5ce-5ea23e45ff16.json
new file mode 100644
index 0000000..3670f8e
--- /dev/null
+++ b/test/data/enm/study-XLSX-d3a9ce39-6c15-3e4b-a5ce-5ea23e45ff16.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-f596b79d-58bd-4c59-8255-cb51aa2ffbec",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-d3a9ce39-6c15-3e4b-a5ce-5ea23e45ff16"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "113",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "113",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": -47.5
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-d4f2714a-a7f6-305a-af41-18d8129fef13.json b/test/data/enm/study-XLSX-d4f2714a-a7f6-305a-af41-18d8129fef13.json
new file mode 100644
index 0000000..b89f2e1
--- /dev/null
+++ b/test/data/enm/study-XLSX-d4f2714a-a7f6-305a-af41-18d8129fef13.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-e4d153a8-15a4-473b-a649-a8f173015876",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-d4f2714a-a7f6-305a-af41-18d8129fef13"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "184",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "184",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "A549",
+    "Dispersion protocol": "Tip",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 47.76
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 1484.384
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 57.465
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-d6285533-0204-3884-a3d8-1dffdcde6324.json b/test/data/enm/study-XLSX-d6285533-0204-3884-a3d8-1dffdcde6324.json
new file mode 100644
index 0000000..281ed2c
--- /dev/null
+++ b/test/data/enm/study-XLSX-d6285533-0204-3884-a3d8-1dffdcde6324.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-f1aa6695-5545-4b13-95fd-614629bfe92b",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-d6285533-0204-3884-a3d8-1dffdcde6324"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "067",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0010001_SECTION",
+      "term": "http://purl.bioontology.org/ontology/bao#BAO_0010001",
+      "title": "BAO_0010001 ATP Assay"
+    },
+    "endpoint": "067",
+    "guideline": [
+      "ATP"
+    ]
+  },
+  "parameters": {
+    "Cell line": "SK-OV-3",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 106.577
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 444.732
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 13.526
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-d7934c3e-9eac-34bc-8c60-4cf0c46e92a3.json b/test/data/enm/study-XLSX-d7934c3e-9eac-34bc-8c60-4cf0c46e92a3.json
new file mode 100644
index 0000000..c07cce6
--- /dev/null
+++ b/test/data/enm/study-XLSX-d7934c3e-9eac-34bc-8c60-4cf0c46e92a3.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-e899dba3-4875-4fb2-b752-6792181138b8",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-d7934c3e-9eac-34bc-8c60-4cf0c46e92a3"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "008",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ASPECT_RATIO_SHAPE_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_274",
+      "title": "4.27 Nanomaterial aspect ratio/shape"
+    },
+    "endpoint": "008",
+    "guideline": [
+      "Shape"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": "round"
+  },
+  "effects": [
+    {
+      "endpoint": "ASPECT RATIO",
+      "conditions": {
+      },
+      "result": {
+        "unit": null,
+        "loValue": 1
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-dce22e5a-6ef2-3fd1-b1c8-9ebdb7bd5d2f.json b/test/data/enm/study-XLSX-dce22e5a-6ef2-3fd1-b1c8-9ebdb7bd5d2f.json
new file mode 100644
index 0000000..e218953
--- /dev/null
+++ b/test/data/enm/study-XLSX-dce22e5a-6ef2-3fd1-b1c8-9ebdb7bd5d2f.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-d8feb7dd-549e-4f70-a119-5d76055e0172",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-dce22e5a-6ef2-3fd1-b1c8-9ebdb7bd5d2f"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "061",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0010001_SECTION",
+      "term": "http://purl.bioontology.org/ontology/bao#BAO_0010001",
+      "title": "BAO_0010001 ATP Assay"
+    },
+    "endpoint": "061",
+    "guideline": [
+      "ATP"
+    ]
+  },
+  "parameters": {
+    "Cell line": "U-87 MG",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 4.727
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 20.401
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 0.627
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-de76fc02-ef1f-310a-b61f-6aab5b586412.json b/test/data/enm/study-XLSX-de76fc02-ef1f-310a-b61f-6aab5b586412.json
new file mode 100644
index 0000000..c13a3db
--- /dev/null
+++ b/test/data/enm/study-XLSX-de76fc02-ef1f-310a-b61f-6aab5b586412.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-df2adeb2-8c2b-431b-8efc-c9da4985a976",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-de76fc02-ef1f-310a-b61f-6aab5b586412"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "119",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0003009_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0003009",
+      "title": "BAO_0003009 Cell Viability Assay"
+    },
+    "endpoint": "119",
+    "guideline": [
+      "WST-1"
+    ]
+  },
+  "parameters": {
+    "Cell line": "THP-1 macrophage",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 97.669
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 106.213
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 0.342
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-f1b0af03-df66-3849-93cc-4ca706c0f751.json b/test/data/enm/study-XLSX-f1b0af03-df66-3849-93cc-4ca706c0f751.json
new file mode 100644
index 0000000..22556dd
--- /dev/null
+++ b/test/data/enm/study-XLSX-f1b0af03-df66-3849-93cc-4ca706c0f751.json
@@ -0,0 +1,75 @@
+{
+  "uuid": "XLSX-afed0a8a-a644-4b2e-afc4-738f8b84c2eb",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-f1b0af03-df66-3849-93cc-4ca706c0f751"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "161",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "NPO_1709_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo#NPO_1709",
+      "title": "NPO_1709 LDH Release Assay"
+    },
+    "endpoint": "161",
+    "guideline": [
+      "LDH"
+    ]
+  },
+  "parameters": {
+    "Cell line": "A549",
+    "Dispersion protocol": "Bath",
+    "Exposure duration,h": 24,
+    "Serum concentration,%": 0.1
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "EC25",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 53.134
+      }
+    },
+    {
+      "endpoint": "EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 75.966
+      }
+    },
+    {
+      "endpoint": "SLOPE EC50",
+      "conditions": {
+      },
+      "result": {
+        "unit": "ug/ml",
+        "loValue": 0.913
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-f94651ce-fd32-3306-8f89-32ffdf533be9.json b/test/data/enm/study-XLSX-f94651ce-fd32-3306-8f89-32ffdf533be9.json
new file mode 100644
index 0000000..aa4105b
--- /dev/null
+++ b/test/data/enm/study-XLSX-f94651ce-fd32-3306-8f89-32ffdf533be9.json
@@ -0,0 +1,53 @@
+{
+  "uuid": "XLSX-ef088215-e743-4bfd-a737-4a9261aac339",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-f94651ce-fd32-3306-8f89-32ffdf533be9"
+    },
+    "company": {
+      "uuid": "XLSX-c4568d50-2e06-3173-95d2-01adb74e6632",
+      "name": "MODENA"
+    }
+  },
+  "citation": {
+    "title": "160",
+    "year": "2015",
+    "owner": "MODENA"
+  },
+  "protocol": {
+    "topcategory": "P-CHEM",
+    "category": {
+      "code": "ZETA_POTENTIAL_SECTION",
+      "term": "http://purl.bioontology.org/ontology/npo/NPO_1302",
+      "title": "4.29 Nanomaterial zeta potential"
+    },
+    "endpoint": "160",
+    "guideline": [
+      "Zeta Potential"
+    ]
+  },
+  "parameters": {
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "ZETA POTENTIAL",
+      "conditions": {
+      },
+      "result": {
+        "unit": "mV",
+        "loValue": 9.96
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-fa48e134-54cf-3417-a63a-6f744191cec2.json b/test/data/enm/study-XLSX-fa48e134-54cf-3417-a63a-6f744191cec2.json
new file mode 100644
index 0000000..0943a29
--- /dev/null
+++ b/test/data/enm/study-XLSX-fa48e134-54cf-3417-a63a-6f744191cec2.json
@@ -0,0 +1,696 @@
+{
+  "uuid": "XLSX-502d510d-75f3-4178-ad7b-66d35eca34fc",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-fa48e134-54cf-3417-a63a-6f744191cec2"
+    },
+    "company": {
+      "uuid": "XLSX-4bb81f08-059d-32ad-b5fd-71c6bcc6e0db",
+      "name": "FP7 MARINA"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1371/journal.pone.0127174",
+    "year": "2015",
+    "owner": "P32 - KI"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002993_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002993",
+      "title": "BAO_0002993 Cytotoxicity Assay"
+    },
+    "endpoint": "",
+    "guideline": [
+      "ELISA / TNF-α release in culture medium"
+    ]
+  },
+  "parameters": {
+    "CHMO:0002774": "Y",
+    "CLO_0000031": "HMDM (primary cells)",
+    "CLO_0000031 EFO_0004443": "ATCC",
+    "Cell culture conditions - Serum": "FBS (Gibco/413105K) ",
+    "Cell culture conditions - Serum concentration in growth medium": 0.1,
+    "Cell culture conditions - Serum concentration in treatment medium": 0.1,
+    "Cell line/Type - Full name": "human monocyte-derived macrophages (HMDM)",
+    "Dispersion agent": "water with 0,05% BSA",
+    "NPO_1952": "N",
+    "NPO_1961": "N",
+    "NPO_1969 OBI_0000272": "NANOGENOTOX Dispersion protocol (http://www.nanogenotox.eu/files/PDF/web%20nanogenotox%20dispersion%20protocol.pdf) ",
+    "OBI_0001911 BAO_0000114": "RPMI (Sigma, RNBB2729 "
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 19.209
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 49.533
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 53.391
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 50.428
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 28.303
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.896
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 7.728
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 6.272
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 17.204
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 33.116
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 41.917
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 50.258
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 40.343
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 20.83
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 9.504
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 5.553
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 4.515
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 8.867
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 13.772
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 29.028
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 15.238
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 5.522
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 4.2
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 4.228
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.168
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 26.755
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 30.424
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 61.664
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 62.196
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 14.767
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 7.709
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 7.886
+      }
+    }
+  ]
+}
diff --git a/test/data/enm/study-XLSX-ffd24485-3b05-3afe-b6ff-547800723f71.json b/test/data/enm/study-XLSX-ffd24485-3b05-3afe-b6ff-547800723f71.json
new file mode 100644
index 0000000..b72311b
--- /dev/null
+++ b/test/data/enm/study-XLSX-ffd24485-3b05-3afe-b6ff-547800723f71.json
@@ -0,0 +1,696 @@
+{
+  "uuid": "XLSX-fa433d53-df49-4420-854a-fd59b58d39c5",
+  "owner": {
+    "substance": {
+      "uuid": "XLSX-ffd24485-3b05-3afe-b6ff-547800723f71"
+    },
+    "company": {
+      "uuid": "XLSX-4bb81f08-059d-32ad-b5fd-71c6bcc6e0db",
+      "name": "FP7 MARINA"
+    }
+  },
+  "citation": {
+    "title": "http://dx.doi.org/10.1371/journal.pone.0127174",
+    "year": "2015",
+    "owner": "P32 - KI"
+  },
+  "protocol": {
+    "topcategory": "TOX",
+    "category": {
+      "code": "BAO_0002993_SECTION",
+      "term": "http://purl.obolibrary.org/obo/BAO_0002993",
+      "title": "BAO_0002993 Cytotoxicity Assay"
+    },
+    "endpoint": "",
+    "guideline": [
+      "ELISA / TNF-α release in culture medium"
+    ]
+  },
+  "parameters": {
+    "CHMO:0002774": "Y",
+    "CLO_0000031": "HMDM (primary cells)",
+    "CLO_0000031 EFO_0004443": "ATCC",
+    "Cell culture conditions - Serum": "FBS (Gibco/413105K) ",
+    "Cell culture conditions - Serum concentration in growth medium": 0.1,
+    "Cell culture conditions - Serum concentration in treatment medium": 0.1,
+    "Cell line/Type - Full name": "human monocyte-derived macrophages (HMDM)",
+    "Dispersion agent": "water with 0,05% BSA",
+    "NPO_1952": "N",
+    "NPO_1961": "N",
+    "NPO_1969 OBI_0000272": "NANOGENOTOX Dispersion protocol (http://www.nanogenotox.eu/files/PDF/web%20nanogenotox%20dispersion%20protocol.pdf) ",
+    "OBI_0001911 BAO_0000114": "RPMI (Sigma, RNBB2729 "
+  },
+  "reliability": {
+    "r_isRobustStudy": "false",
+    "r_isUsedforClassification": "false",
+    "r_isUsedforMSDS": "false",
+    "r_purposeFlag": null,
+    "r_studyResultType": "experimental result",
+    "r_value": null
+  },
+  "interpretation": {
+    "result": null
+  },
+  "effects": [
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 1.893
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 18.514
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 18.428
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 15.693
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.034
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.45
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.752
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 1",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 16.306
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": -0.343
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 11.593
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 8.816
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 6.91
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 5.42
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 5.461
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 6.527
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 2",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 0.599
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 2.189
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 3.195
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 2.978
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 1.9
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 2.014
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 1.952
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 1.467
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 3",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 0.401
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 0,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 9.502
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 1,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 7.576
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 5,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 7.826
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 10,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 10.336
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 25,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 10.84
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 50,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 10.924
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 75,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 11.36
+      }
+    },
+    {
+      "endpoint": "TNF-α (ng/ml)",
+      "conditions": {
+        "Concentration": {
+          "loQualifier": "=",
+          "loValue": 100,
+          "unit": "µg/ml"
+        },
+        "Replicate": "Replicate 4",
+        "Time point": {
+          "loQualifier": "=",
+          "loValue": 24,
+          "unit": "h"
+        }
+      },
+      "result": {
+        "unit": "ng/ml",
+        "loValue": 7.389
+      }
+    }
+  ]
+}