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29. Double pylorus: a complication of chronic gastric ulcer? St John DJ, Carter GJ, Smith BW, Essex WB. Aust N Z J Med; 1976 Dec; 6(6):576-9. PubMed ID: 1071545 [Abstract] [Full Text] [Related]
31. Acquired double pylorus: Clinical and endoscopic characteristics and four-year follow-up observations. Lei JJ, Zhou L, Liu Q, Xu CF. World J Gastroenterol; 2016 Feb 14; 22(6):2153-8. PubMed ID: 26877621 [Abstract] [Full Text] [Related]