2Orda R,Sayfan J,Strauss S,et al.Intraoperative ultrasonography as a routine sereneung procedure in biliary surgery[J].Hepatogastroenterology,1994,41 (1):61-64.
3Liu TH,Consorti ET,Kawashima A,et al.Patient evaluation and management with selective use of magnetic resonance cholangiography and endoscopic retronde cholangiopancreatography before laproscopic cholecystectomy[J].Ann Surg,2001,234(1):33-40.