HHEAR Value Sets Veterans Health Administration National Drug File Source
http://purl.obolibrary.org/obo/NCIT_C18020 http://purl.bioontology.org/ontology/STY/T060 LOOM
http://purl.obolibrary.org/obo/CHEBI_85122 http://purl.bioontology.org/ontology/VANDF/4019651 LOOM
http://purl.obolibrary.org/obo/UBERON_0001913 http://purl.bioontology.org/ontology/VANDF/4019840 LOOM