{
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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" : "cb662ef2-5ea3-5863-9ce4-0dc51f6070d6",
  "concept_id" : "9483d434-04b3-5f5f-a989-e4d4c958af2f",
  "ancestors" : {
    "phase-4" : 0
  },
  "id" : "0bb2116c-7ba4-4cc3-ab83-d34e5c2bb15a",
  "code" : "phase-4",
  "display" : "Phase 4",
  "version" : "1.0.0"
}