Pounder, R E What is an intractable duodenal ulcer and how should it be managed? [electronic resource] - Alimentary pharmacology & therapeutics 1987 - 439S-446S p. digital Publication Type: Journal Article; Review ISSN: 0269-2813 Standard No.: 10.1111/j.1365-2036.1987.tb00654.x doi Subjects--Topical Terms: Drug ResistanceDuodenal Ulcer--therapyHumans