Minimal Anatomical Terminology	Pharmacogenomic Relationships Ontology	Source
http://purl.obolibrary.org/obo/MAT_0000481	http://www.stanford.edu/~coulet/phare.owl#Prodrug	LOOM
http://purl.obolibrary.org/obo/MAT_0000315	http://www.stanford.edu/~coulet/phare.owl#Blood	LOOM