Resource
https://www.hl7.org/fhir/allergyintolerance.html
Profile examples
https://simplifier.net/search?text=allergyintolerance&category=Profile&fhirVersion=STU3
https://www.hl7.org/fhir/allergyintolerance.html
https://simplifier.net/search?text=allergyintolerance&category=Profile&fhirVersion=STU3