4Dasgupta P, Cynk MS, Buhitude MF, et al. Flexible ureterorenoscopy: prospective analysis of the Guy' s experience. Ann R Coll Surg Engl,2004,86 (5) :367 - 370.
5Albala DM, Assimos DG, Clayman RV, et al. Lower pole I: a prospective randomized trial of extracorporeal shock wave lithotripsy and percutaneous nephrostolithotomy for lower pole nephrolithiasisinitial results. J Urol,2001,166 ( 6 ) :2072 - 2080.
6Pasqui F, Dubosq F, Tchala K, et al. Impact on activescope deflection and irrigation flow of all endoscopic working tools during flexible ureteroscopy. Eur Urol,2004,45 ( 1 ) :58 - 64.
7Elbahnasy AM, Shalhav AL, Hoenig DM, et al. Lower caliceal stone clearance after shock wave lithotripsy or ureteroscopy :The impact of lower pole radiographic anatomy. J Urol, 1998,159 (3) :676 - 682.
8Saidi A, Combes F, Delaporte V, et al. Flexible ureteroscopy and holmium-Yag laser: material and technique. Prog Urol, 2006, 16 (1) :19 -24.
