McEwan-Alvarado, G Choledochoduodenal fistulas complicating duodenal ulcer. [electronic resource] - The American journal of digestive diseases Sep 1967 - 947-54 p. digital Publication Type: Journal Article ISSN: 0002-9211 Standard No.: 10.1007/BF02236453 doi Subjects--Topical Terms: AgedBiliary Fistula--diagnostic imagingDuodenal Ulcer--complicationsFemaleHumansMaleMiddle AgedRadiographyVagotomy