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