Union of http://hl7.org/fhir/StructureDefinition/artifact-effectivePeriod and http://hl7.org/fhir/StructureDefinition/artifact-effectivePeriod

This is the set of resources that conform to either of the profiles Artifact Effective Period (http://hl7.org/fhir/StructureDefinition/artifact-effectivePeriod) and Artifact Effective Period (http://hl7.org/fhir/StructureDefinition/artifact-effectivePeriod). E.g. what you have to deal with if you get resources conforming to one of them

Structure

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1When the artifact is expected to be used
... extension 0..*ExtensionAdditional content defined by implementations
... url 1..1uriidentifies the meaning of the extension
... value[x] 1..1PeriodValue of extension

doco Documentation for this format