Fire Arrow ServerREST APIPOST: /SubstanceReferenceInformation/$hapi.fhir.undo-mergePOST: /SubstanceReferenceInformation/$hapi.fhir.undo-merge POST /SubstanceReferenceInformation/$hapi.fhir.undo-merge POST: /SubstanceReferenceInformation/$hapi.fhir.undo-merge Request Responses200Success