See the patterns page for implementation and usage patterns.


// connectathon/fhir3/cql/EXM117_FHIR3-1.0.1.cql
define "Polio Immunizations or Procedures":
 ( ["Immunization": "Inactivated Polio Vaccine (IPV)"] PolioVaccination
     where PolioVaccination.status = 'completed' )