http://hl7.org/fhir/StructureDefinition/Reference|5.0.0

Reference Type: A reference from one resource to another.
NameFlagsCardTypeDescription & Constraints
Reference
0..*A reference from one resource to another
 
reference
Σ
0..1stringLiteral reference, Relative, internal or absolute URL
 
type
Σ
0..1uriType the reference refers to (e.g. \"Patient\") - must be a resource in resources FHIRResourceTypeExt (extensible)
 
identifier
Σ
0..1IdentifierLogical reference, when literal reference is not known
 
display
Σ
0..1stringText alternative for the resource