4Singh V,Srinivastava A,Kapoor R,et al.Can the complicated forgotten indwelling ureteric stents be lethal.Int Urol Nephro,2005,37(3):541-546.
5Vallejo Herrador J, Maganto Pav6n E, Burgos Revilla FJ, et al. The double-J ureteral catheter: its historical development and current sta- tus [ J ]. Arch Esp Urol, 1999,52 ( 5 ) :499 -504.
6Buhitude MF ,Tiptaft RC, Glass JM. et al. Management of entrusted u- reteral stents impacted in upper tract [ J ]. Urology,2003,62 (4) :622- 626.