2Guibaud L,Bret PM,Reinhold C, et al. Bite duct obstruction and choledocholithiasis: diagnosis with MR cholangiography.Radiology, 1995;197(1):109.
3Rawat B, Loewy J. Value of three - dimensional gradient-echo magnetic resonance cholangiography in diagnosing choledocholithiasis. Can Assoc Radiol J,1996;47(4):265.
4Chan YL, Chan AC, Lam WW, et al. Choledocholithiasis:comparison of MR cholangiography and endoscopic retrograde cholangiography. Radiology, 1996;200(1):85.
5Mukai HK, Nakajima MT, et al. Evaluation of endoscopic uitrasonography in the preoperative staging of carcinoma of the ampulla of rater and common bile duct. Gastrointestinal endoscopy, 1992;38:676.
7Palazzo L, Girollet PP. Salmeron M, et al. Value of endoscopic ultrasonography in the diagnosis of common bile duct stones:comparison with surgical exploration and ERCP. Gastrointest Endosc,1995;42(3):225.
8Tham TCK, Carr - locke DL, Collins JSA. Endoscopic sphincterotomy in the young patient: is there cause for concern? Gut,1997;40:697.
9Staritz M, Poralla T, Dormeyer HH, et al. Endoscopic removal of common bileduct stones through the intact papilla after medical sphincter dilation. Gastroenterology,1985;88:1807.
10Lbuki Y, Kudo M, Todo A. Endoscopic retrograde extraction of common bile duct stones with drip infusion of isosorbide dinitrate. Gastrointest Endosc 1992;38:749.
