http://hl7.org/fhir/StructureDefinition/questionnaireresponse-author|4.0.1

Allows capturing, on a specific question or group of questions, exactly who was responsible for providing the answer(s).
typedestination
baseDefinitionhttp://hl7.org/fhir/StructureDefinition/Extension
typehttp://hl7.org/fhir/StructureDefinition/Extension
Extension.value[x].typehttp://hl7.org/fhir/StructureDefinition/Reference
Extension.value[x].targetProfilehttp://hl7.org/fhir/StructureDefinition/Patient
Extension.value[x].targetProfilehttp://hl7.org/fhir/StructureDefinition/RelatedPerson
Extension.value[x].targetProfilehttp://hl7.org/fhir/StructureDefinition/Device
Extension.value[x].targetProfilehttp://hl7.org/fhir/StructureDefinition/Practitioner