1. Un tire-papille souple;Hepp;Presse Med,1956
2. A new instrument to facilitate transduodenal sphincterotomy;Doubilet;Surg Gynecol Obstet,1954
3. An improved bougie and scoop for common duct exploration;Klebanoff;Am J Surg,1964
4. Sphincteroplasty (not sphincterotomy) in the treatment of biliary tract disease;Jones;Surg Clin North Am,1973