4Olbert P,Weber J,Hegele A,et al.Combining Lithoclast and uhrasound power in one device for percutaneous nephrolithotomy:in vitro results of a novel and highly effective technology[J].Urology,2003,61(1):55-59.
5Sorer Mario,Watterson J D,Wollin T A,et al. U-100 laser lithotipsy for upper urinary tractcalculi in 598 patients[J]. J Urol,2002,167(1):31-35.
6Chtourou M, Ben Y A, Binous M Y. Combination of ballistic lithotripsy and transurethral prostatectomy bladder stones with benign prostatic hyperplasia: report of 120 cases[J]. J Endouro,2001,15(8):851- 853.
7Ebent A, Stangl J, Kuehn R, et al. The frequencydoubled double-pulse Neodym: YAG laser lithotripter (FREEDY) in lithotripsy of urinary stones. First Clinical experience[J]. Urologe A, 2003,42 (6) : 825 --833.
8Charles G, Marguet J, Sung W, et al. In vitro comparison of stone retropulsion and fragmentation of the frequency doubled double pulse ND.. YAG laser and the Holmium:YAG laser[J]. The Journal of Urology, 2005,173(5) : 1797- 1800.
