6Hussain M, Acher P, Penev B, et al. Redefining the limits of :flexible ureterorenoscopy[J]. J Endourol, 2011,25 ( 1 ) : 45-49.
7Takazawa R, Kitayama S, Tsujii T. Successful outcome of flexible ureteroscopy with Holmium laser lithotripsy for renal stones 2 cm or greater[J]. Int J Urol,2012,19(3) : 264-267.
8Hyams ES, Munver R, Bird VG, et al. Flexible uretero- renoscopy and Holmium laser lithotripsy for the manage- ment of renal stone burdens that measure 2 to 3 cm: a multi-institutional experience [ J]. J Endourol, 2010, 24 (10) : 1583-1588.
9Geavlete P, Multescu R, Geavlete B. Influence of pyelocal- iceal anatomy on the success of flexible ureteroscopic ap- proach[J]. J Endourol, 2008,22 (10) : 2235-2239.
10Kijvikai K, Haleblian GE, Preminger GM, et al. Shock wave lithotripsy or ureteroscopy for the management of proximal ureteral calculi:an old discussion revisited[J]. J Urol, 2007,178(4) : 1157-1163.
