Veterans Health Administration National Drug File Bioentities Source
http://purl.obolibrary.org/obo/BE_Protease http://purl.bioontology.org/ontology/VANDF/4018424 LOOM
http://purl.obolibrary.org/obo/BE_Fibrinogen http://purl.bioontology.org/ontology/VANDF/4028926 LOOM
http://purl.obolibrary.org/obo/BE_Interferon http://purl.bioontology.org/ontology/VANDF/4019787 LOOM