LinkML Common Metadata Elements and Terms	DICOM Controlled Terminology	Source
https://w3id.org/linkml-common/Person	http://dicom.nema.org/resources/ontology/DCM/121006	LOOM
https://w3id.org/linkml-common/Concept	http://www.w3.org/2004/02/skos/core#Concept	LOOM
https://w3id.org/linkml-common/Patient	http://dicom.nema.org/resources/ontology/DCM/121025	LOOM