Union of http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-AvailabilityPeriod-extension and http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-AvailabilityPeriod-extension

This is the set of resources that conform to either of the profiles Availability Period (http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-AvailabilityPeriod-extension) and Availability Period (http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-AvailabilityPeriod-extension). E.g. what you have to deal with if you get resources conforming to one of them

Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. Extension 0..*Availability Period
ele-1: All FHIR elements must have a @value or children
ext-1: Must have either extensions or value[x], not both
... url 1..1uriidentifies the meaning of the extension
... value[x] S1..1PeriodValue of extension
ele-1: All FHIR elements must have a @value or children

doco Documentation for this format