The national ASGE survey on upper gastrointestinal bleeding. III. Endoscopy in upper gastrointestinal bleeding.
D000328:Adult; D000368:Aged; D004724:Endoscopy / Q000009:adverse effects; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011292:Premedication; D011446:Prospective Studies