{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Includes controlled clinical studies conducted to evaluate the effectiveness of the drug for a particular indication or indications in participants with the disease or condition under study and to determine the common short-term side effects and risks.",
  "system" : "http://terminology.hl7.org/CodeSystem/research-study-phase",
  "property" : [ ],
  "codesystem" : "ee5ea2b9-f362-5c7e-b4d6-917b2833d891",
  "concept_id" : "78aeb7c2-faed-5ba4-a1d4-624cf1545ac3",
  "ancestors" : {
    "phase-2" : 0
  },
  "id" : "efce2a21-0221-4514-b2a0-2aac20a4de91",
  "code" : "phase-2",
  "display" : "Phase 2",
  "version" : "4.0.1"
}