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2. Thromboulcerative colitis associated with cologastric and coloduodenal fistulas;Ormandy;Proc. Mayo Clin.,1939
3. Ulcerativecolitis complicated by cologastric fistula;Altcheck;Gastroenterology,1957
4. Life histories of patients with ulcerative colitis;Sloan;Gastroenterology.,1950
5. Ulcerative Colitis;Bacon,1958