1. Early experience with combined endoscopic sphincterotomy and laparoscopic cholecystectomy (endo-lap) in patients with choledocholithiasis;Aliperti;Am J Gastroenterol,1990
2. 2-9 year follow-up after sphincterotomy for stones in patients with gallbladders;Cotton;Gastrointest Endosc,1986
3. Nonoperative removal of bile duct stones by duodenoscopic sphincterotomy;Cotton;Br J Surg,1980
4. Endoscopic retrograde sphincterotomy in the management of common bile duct stones;Danilewitz;S Afr Med J,1984
5. Endoscopic sphincterotomy for common bile duct calculi in patients with gallbladder in situ considered unfit for surgery;Davidson;Gut,1988