3Bagley DH. Endourolgicous of the holmium laser[M].WY,Jackson : Teton new Media, 2000 : 1-68.
4Wollin TA, Denstedt JD. Identifying stone composition using infrared analysis of filtered urine after ureteroscopic lithotripsy[J].Endourol, 1999,13(7)499-503.