6BRANDT H,RATHERT P.Endoscopic urinary stone litho-tripsy with t he U- 1001aser[FREDDY Technology] first clini-cal trials on 104patients[C]. 48th Annual Meeting of Urology in North Rhine Westphalia Germany- Cologne,2002,45-47.
7Jou YC,Shen JH,ChengMC,et al.Percuta-neous nephrolithotomywith holmium:Yttium-alumiun-garnet laser and fiber guider-report of 349 cases[J].Urology,2005,65(3):454-458.