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22. Differential diagnosis of jaundice by endoscopic retrograde cholangiography. Safrany L. Acta Gastroenterol Belg; 1973 Dec 03; 36(12):711-24. PubMed ID: 4788303 [No Abstract] [Full Text] [Related]
23. Direct vision of the ampulla of Vater through the gastroduodenal fiberscope. Watson WC. Lancet; 1966 Apr 23; 1(7443):902-3. PubMed ID: 4159621 [No Abstract] [Full Text] [Related]
35. Endoscopic access to the papilla of Vater. Geenen JE, Hogan WJ. Endoscopy; 1980 Jan 23; (Suppl):47-56. PubMed ID: 7408790 [No Abstract] [Full Text] [Related]