Pimpl, W Does emergency endoscopy help to select patients with bleeding gastroduodenal ulcers for surgery? [electronic resource] - World journal of surgery Jun 1988 - 426-7 p. digital Publication Type: Letter ISSN: 0364-2313 Standard No.: 10.1007/BF01655693 doi Subjects--Topical Terms: Duodenal Ulcer--complicationsDuodenoscopy--methodsEmergenciesHumansPeptic Ulcer Hemorrhage--diagnosisPrognosis