Early endoscopy and outcome of the patient with upper gastrointestinal bleeding.
D004381:Duodenal Ulcer / Q000150:complications; D004724:Endoscopy; D005767:Gastrointestinal Diseases / Q000175:diagnosis / Q000601:surgery; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis*; D006801:Humans; D010438:Peptic Ulcer Hemorrhage / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000150:complications