1. The technique of biliary duct stone extraction;Burhenne;Radiology,1974
2. Nonoperative retained biliary tract stone extraction: a new roentgenologic technique;Burhenne;Am J Roentgenol,1973
3. Review of 220 caes of residual biliary tract calculi treated without reoperation;Mazzariello;An eight year study. Surgery,1973
4. Siegel JH, Hurding T, Chateau F, Sherman HI, Davis Jr RCF. Webb WA: Percutaneous endoscopic extraction of retained stones (PEERS): endoscopic extraction from the common bile duct and gallbladder. NY State J Med, in press
5. Non-surgical removal of intrahepatic stones by the choledochofiberscope;Yamakawa;J Adult Dis,1977