{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Trials that are a combination of phases 1 and 2.",
  "system" : "http://terminology.hl7.org/CodeSystem/research-study-phase",
  "property" : [ ],
  "codesystem" : "ee5ea2b9-f362-5c7e-b4d6-917b2833d891",
  "concept_id" : "fa2a806a-6e4e-5c2f-ba42-774b71c5be8b",
  "ancestors" : {
    "phase-1-phase-2" : 0
  },
  "id" : "e64eaaf9-b740-48c8-94c3-e8ae30a31908",
  "code" : "phase-1-phase-2",
  "display" : "Phase 1/Phase 2",
  "version" : "4.0.1"
}