1. Residual biliary tract stones: nonoperative treatment of 570 patients;Mazzariello;Surg Ann,1976
2. Percutaneous extraction of retained biliary tract stones: 661 patients;Burhenne;AJR,1980
3. Results of nonsurgical treatment of retained biliary calculi;Caprini;Surg Gynecol Obstet,1980
4. Nonsurgical treatment of common-bile-duct stones;Taylor;Can J Surg,1984
5. Removal of retained bile-duct calculus without operatioi, a case report;Magarey;Br J Surg,1969