{
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  "definition" : "Studies of FDA-approved drugs to delineate additional information including the drug's risks, benefits, and optimal use.",
  "system" : "http://terminology.hl7.org/CodeSystem/research-study-phase",
  "property" : [ ],
  "codesystem" : "4451bcb0-32a1-508a-ac6d-781e0ad07aa5",
  "concept_id" : "9483d434-04b3-5f5f-a989-e4d4c958af2f",
  "ancestors" : {
    "phase-4" : 0
  },
  "id" : "83c3e480-78b9-4743-9382-cae0f5b99662",
  "code" : "phase-4",
  "display" : "Phase 4",
  "version" : "1.0.0"
}