3Lalak NJ, Moussa SA, Smith G, et al. The domier compact delta lithotripter: the first 150 ureteral calculi [J]. J Endourol, 2002, 16 (9): 645-8.
4Obek C, Onal B, Kantay K, et al. The efficacy of extracorporeal shock wave lithotripsy for isolated lower pole calculi compared with isolated middle and upper caliceal calculi [J]. J Urol, 2001, 166(6): 2081-5.
5Sorensen CM, Chandhoke PS. Is lower pole calieeal anatomy predictive of extracorporeal shock wave lithotripsy success for primary lower pole kidney stones [J ] ? J Urol, 2002, 168(6): 2377-83.
6Gnanapragasam VJ, Ramsden PD, Murthy LS, et al. Primary in situ extracorporeal shock wave lithotripsy in the management ofureteric calculi: results with a third-generation lithotripter [J]. BJU Int, 1999, 84(7): 770-4.
7Bierkens AF, Hendrikx AJ, De La Rosette J J, et al. Treatment of mid- and lower ureteric calculi: extracorporeal shock-wave lithotripsy vs laser ureteroscopy. A comparison of costs, morbidity and effectiveness[J]. Br J Urol, 1998, 81(1): 31-5.
8Abdel-Khalek M, Sheir K, Elsobky E, et al. Prognostic factors for extracorporeal shock-wave lithotripsy of ureteric stones--a multivariate analysis study[J]. Scand J Urol Nephrol, 2003, 37(5): 413-8.
9Sumino Y, Mimata H, Tasaki Y, et al. Predictors of lower pole renal stone clearance after extracorporeal shock wave lithotripsy [J]. J Urol, 2002, 168(4 Pt 1): 1344-7.
10Elbahnasy AM, Clayman RV, Shalhav AL, et al. Lower-pole caliceal stone clearance after shockwave lithotripsy, pereutaneous nephrolithotomy, and flexible ureteroscopy: impact of radiographic spatial anatomy[J]. J Endourol, 1998, 12(2): 113-9.