Snow Owl

snomed ct snomed snow owl terminology ehr semantic query authoring snomed ct exercise tutorial local code systems value sets atc icd-10-am terminology authoring semantic interoperability trial patient recruitment standards emof emf semantic interoperbility ecore hl7 terminology binding lmd logical model designer reference sets loinc icd-10 drug dictionary national extension drug extension groovy script versioning collaborative terminology authoring revision-controlled web-based interface query browser authoring tool mapping browsing subsets