5Fernstrom I, Johansson B. Percutaneous pyelolithotomy. A new extraction technique[ J]. Stand J Urol Nephrol, 1976,10 ( 3 ) : 257 - 259.
6Goel A, Aron M, Gupta NP, et al. Relook percutaneous nephrolithotomy: a simple technique to re-enter the pelvicalyceal system [J]. Urol Int,2003,71(2):143-145.
7Fernandez F, Nahon O, Combes F, et al. Treatment of inferior caliceal stones by flexible ureteroscopy [ J ]. Prog Urol,2005,15 ( 4 ) :636 -640.
8Margel D, Ehrlich Y, Brown N, et al. Clinical implication of routine stone culture in percutaneous nephrolithotomy-a prospective study [ J ]. Urology ,2006,67 ( 1 ) :26 - 29.
9Mariappan P, Smith G, Bariol SV,et al. Stone and pelvic urine culture and sensitivity are better than bladder urine as predictors of urosepsis following percutaneous nepbrolithotomy: a prospective clinical study[J]. J Urol,2005,173(5) :1610 -1614.
