{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "case-control study.",
  "system" : "http://terminology.hl7.org/CodeSystem/study-type",
  "property" : [ ],
  "codesystem" : "ea20290d-51ad-5f9f-9bae-03810e134550",
  "concept_id" : "93ce133e-7d94-5a14-94f7-db0a04365166",
  "ancestors" : {
    "case-control" : 0
  },
  "id" : "f50cb41c-799c-4995-8087-18abbb74be72",
  "code" : "case-control",
  "display" : "case-control study",
  "version" : "4.0.1"
}