National Drug File - Reference Terminology Ontology of Core Data Mining Entities Source
http://purl.bioontology.org/ontology/STY/T071 http://purl.obolibrary.org/obo/BFO_0000001 LOOM
http://purl.bioontology.org/ontology/STY/T092 http://purl.obolibrary.org/obo/OBI_0000245 LOOM