1Choong S, Whitfiel d H, Duffy P, et al. The management of pediatric urolithiasis. BJU In t,2000,86:857 - 860.
2Schuhz--lampel D, Lampel A. The surgical management of stones in children. Bri Int ,2001,87:732 - 740.
3Raza A, Turna B, Smith G, et al. Pediatric umlithiasis : 15 years of lo- cal experience with minimally invasive endourologica[ management of pediatric calculi. J Urol,2005,174(2) :682 -685.