Process Chemistry Ontology Gazetteer Source
http://purl.obolibrary.org/obo/GAZ_00378987 http://purl.obolibrary.org/obo/CHEBI_24433 LOOM
http://purl.obolibrary.org/obo/GAZ_00598562 http://purl.obolibrary.org/obo/PATO_0000125 LOOM