title: Localization of bleeding vascular lesions in the gastrointestinal tract.
mesh_terms: D002404:Catheterization; D002432:Cecum / Q000098:blood supply*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D007441:Intubation, Gastrointestinal / Q000295:instrumentation; D008875:Middle Aged; D014648:Varicose Veins / Q000150:complications* / Q000175:diagnosis