@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix theremy: <http://lights.science/theremy> .

<http://lights.science/theremy/103080200000000>
  skos:prefLabel "unmatched case-control study"@en ;
  a skos:Concept ;
  skos:broader <http://lights.science/theremy/103080000000000> .

theremy: a skos:ConceptScheme .
<http://lights.science/theremy/103000000000000>
  skos:prefLabel "observational studies"@en ;
  a skos:Concept ;
  skos:narrower <http://lights.science/theremy/103080000000000> .

<http://lights.science/theremy/103080000000000>
  skos:altLabel "case-referrent study"@en, "case-comparison study"@en, "case-compeer study"@en, "case-referent study"@en ;
  a skos:Concept ;
  skos:prefLabel "case-control study"@en ;
  skos:narrower <http://lights.science/theremy/103080100000000>, <http://lights.science/theremy/103080200000000> ;
  skos:broader <http://lights.science/theremy/103000000000000> ;
  skos:inScheme theremy: ;
  skos:example <https://lights.science/app/search?q=case-control+study> .

<http://lights.science/theremy/103080100000000>
  skos:prefLabel "matched-case control study"@en ;
  a skos:Concept ;
  skos:broader <http://lights.science/theremy/103080000000000> .