{
  "package" : "hl7.fhir.r5.core@5.0.0",
  "definition" : "A study design feature in which the study intent is to compare two or more interventions with respect to benefits and/or harms.",
  "system" : "http://hl7.org/fhir/study-design",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "SEVCO:01092"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#child",
    "code" : "child",
    "_implicit" : true,
    "valueCode" : "SEVCO:01090"
  }, {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "SEVCO:01088"
  } ],
  "codesystem" : "bb32c5f8-166a-5db4-919c-9554be080f5c",
  "concept_id" : "a0a77f49-8245-515e-8b2a-e51b6866e719",
  "ancestors" : {
    "SEVCO:01088" : 1,
    "SEVCO:01089" : 2,
    "SEVCO:01091" : 0
  },
  "id" : "5b09028e-edd7-473e-98af-2d338fd79467",
  "code" : "SEVCO:01091",
  "display" : "Comparative Effectiveness Goal",
  "version" : "5.0.0"
}