The Drug Ontology Ontology for Representing CDM Semantics Source
http://purl.obolibrary.org/obo/IAO_8000016 http://purl.obolibrary.org/obo/IAO_8000016 SAME_URI
http://purl.obolibrary.org/obo/BFO_0000019 http://purl.obolibrary.org/obo/PATO_0000001 LOOM
http://purl.obolibrary.org/obo/BFO_0000023 http://purl.obolibrary.org/obo/CHEBI_50906 LOOM