HHEAR Value Sets Anatomical Therapeutic Chemical Classification Source
http://purl.obolibrary.org/obo/NCIT_C18020 http://purl.bioontology.org/ontology/STY/T060 LOOM
http://purl.obolibrary.org/obo/UBERON_0001969 http://purl.bioontology.org/ontology/ATC/B05AX03 LOOM