Pathway Terminology System	Electrocardiography Ontology	Source
http://www.w3.org/2002/07/owl#Thing	http://www.w3.org/2002/07/owl#Thing	SAME_URI
http://purl.obolibrary.org/obo/IEV_0001886	http://www.cvrgrid.org/files/ECGOntologyv1.owl#ECG_000000437	LOOM
http://purl.obolibrary.org/obo/IEV_0000182	http://www.cvrgrid.org/files/ECGOntologyv1.owl#ECG_000000237	LOOM