Read Clinical Terminology Version 2	Mammography Screening Ontology	Source
http://purl.bioontology.org/ontology/RCTV2/9c04.00	http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C54625	LOOM
http://purl.bioontology.org/ontology/RCTV2/7P0F200	http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C16818	LOOM