http://hl7.org/fhir/StructureDefinition/questionnaire-referenceResource|5.2.0
Where the type for a question is \"Reference\", indicates a type of resource that is permitted.
| element_id | types |
|---|---|
| Extension.extension | |
| Extension | |
| Extension.extension | |
| Extension.url | |
| Extension.value[x] | |
| Extension | |
| Extension.id | |
| Extension.url | |
| Extension.value[x] |