Diagnostic endoscopy during laparotomy for acute hemorrhage from the upper part of the gastrointestinal tract.
D004724:Endoscopy; D004932:Esophageal and Gastric Varices / Q000150:complications; D005336:Fiber Optic Technology; D005756:Gastritis / Q000150:complications; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D007813:Laparotomy; D008722:Methods