{
  "package" : "hl7.terminology.r4@6.3.0",
  "definition" : "Includes initial studies to determine the metabolism and pharmacologic actions of drugs in humans, the side effects associated with increasing doses, and to gain early evidence of effectiveness; may include healthy participants and/or patients.",
  "system" : "http://terminology.hl7.org/CodeSystem/research-study-phase",
  "property" : [ ],
  "codesystem" : "4451bcb0-32a1-508a-ac6d-781e0ad07aa5",
  "concept_id" : "2ee44047-1330-50a4-8702-45337409b232",
  "ancestors" : {
    "phase-1" : 0
  },
  "id" : "4ec82116-6437-4faf-a827-6a456bdb76e3",
  "code" : "phase-1",
  "display" : "Phase 1",
  "version" : "1.0.0"
}