National Drug Data File	Biomedical Informatics Research Network Project Lexicon	Source
http://bioontology.org/projects/ontologies/birnlex#birnlex_2	http://purl.bioontology.org/ontology/STY/T001	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_376	http://purl.bioontology.org/ontology/STY/T001	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_252	http://purl.bioontology.org/ontology/STY/T015	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_2015	http://purl.bioontology.org/ontology/NDDF/UN	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_19	http://purl.bioontology.org/ontology/STY/T024	LOOM
http://bioontology.org/projects/ontologies/birnlex#Entity	http://purl.bioontology.org/ontology/STY/T071	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_516	http://purl.bioontology.org/ontology/STY/T016	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_12	http://purl.bioontology.org/ontology/STY/T025	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_3072	http://purl.bioontology.org/ontology/NDDF/005878	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_2060	http://purl.bioontology.org/ontology/STY/T032	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_14	http://purl.bioontology.org/ontology/STY/T022	LOOM
http://bioontology.org/projects/ontologies/birnlex#birnlex_585	http://purl.bioontology.org/ontology/NDDF/019392	LOOM