This is the CodeSystem that contains all the codes in ResearchStudyReasonStopped (http://terminology.hl7.org/CodeSystem/research-study-reason-stopped) and ResearchStudyReasonStopped (http://terminology.hl7.org/CodeSystem/research-study-reason-stopped). E.g. what you have to deal with if you get resources containing codes in either of them
Generated Narrative: CodeSystem ceaac9ad-f8a4-45dd-ac3b-287f763986d9-1445
This code system http://hl7.org/fhir/comparison/CodeSystem/ceaac9ad-f8a4-45dd-ac3b-287f763986d9-1445 defines codes, but no codes are represented here