Piazze, A. and Ruocco, A. (1996) “Treatment of residual lithiasis of the common bile duct with external biliary drainage by guided endoscopic papillotomy”, Cirugía del Uruguay, 66(2), pp. 99–103. Available at: https://replica-revista.scu.org.uy/index.php/cir_urug/article/view/4237 (Accessed: 14 June 2026).