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fhir package
documentation
dstu2/resource_types/infrastructure_types/documents_and_lists/documents_and_lists.dart
DocumentReference
subject property
subject property
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subject
property
Reference
?
subject
inherited
Implementation
Reference? get subject => throw _privateConstructorUsedError;
fhir package
documentation
dstu2/resource_types/infrastructure_types/documents_and_lists/documents_and_lists
DocumentReference
subject property
DocumentReference class