description: abstract profile to ensure the reference is always a literal reference. Used in conjuction with a rule set to ensure every reference is also bundled package_name: hl7.fhir.us.pq derivation: constraint name: LiteralReference abstract: true type: Reference elements: reference: {mustSupport: true, index: 0} package_version: cmc-fda-2.0.0-ballot class: complex-type kind: complex-type url: http://hl7.org/fhir/us/pq-cmc-fda/StructureDefinition/literal-reference base: http://hl7.org/fhir/StructureDefinition/Reference version: 2.0.0-ballot required: [reference]