Veterans Health Administration National Drug File	Protein Modification Ontology	Source
http://purl.bioontology.org/ontology/VANDF/4017688	http://purl.obolibrary.org/obo/MOD_01064	LOOM
http://purl.bioontology.org/ontology/VANDF/4037132	http://purl.obolibrary.org/obo/MOD_00062	LOOM
http://purl.bioontology.org/ontology/VANDF/4018704	http://purl.obolibrary.org/obo/MOD_00194	LOOM