Minimal Standard Terminology of Digestive Endoscopy Physico-Chemical Methods and Properties Source
http://purl.bioontology.org/ontology/STY/T086 http://purl.obolibrary.org/obo/FIX_0000312 LOOM
http://purl.bioontology.org/ontology/STY/T087 http://purl.obolibrary.org/obo/FIX_0000293 LOOM