description: Profile of Group for Evidence Based Medicine IG. The ComparatorGroup Profile is used to represent a group (enumerated) used as a comparator in a ComparativeEvidence. package_name: hl7.fhir.uv.ebm derivation: constraint name: ComparatorGroup type: Group elements: membership: pattern: {type: Code, value: enumerated} index: 0 package_version: 1.0.0-ballot2 class: profile kind: resource url: http://hl7.org/fhir/uv/ebm/StructureDefinition/comparator-group base: http://hl7.org/fhir/uv/ebm/StructureDefinition/group-r6 version: 1.0.0-ballot2