Radiology Lexicon	Lipid Ontology	Source
http://semanticscience.org/sadi/ontology/leo.owl#Lipid	http://www.radlex.org/RID/RID5889	LOOM
http://unbsj.biordf.net/lipids/lipid-maps-ontology.owl#Lipid	http://www.radlex.org/RID/RID5889	LOOM