title: A comparison of routine and selective endoscopy in the management of acute gastrointestinal hemorrhage.
mesh_terms: D000208:Acute Disease; D004724:Endoscopy; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography