RxNORM	Core Ontology for Biology and Biomedicine	Source
http://purl.bioontology.org/ontology/STY/T001	http://purl.obolibrary.org/obo/COB_0000022	LOOM
http://purl.bioontology.org/ontology/STY/T025	http://purl.obolibrary.org/obo/CL_0000000	LOOM