6Femstrom I,Johansson B. Percutaneous pyelolithotomy. A new ex-traction technique[ J]. Scand J Urol Nephrol,1976,10( 3 ) :257 -259.
7Watson RA. Re: Ethnic differences in relative risk of idiopathiccalcium nephrolithiasis in North America. A. Mente, R. J. Hon-ey ,J. R. McLaughlin, S. B. Bull and A. G. Logan[ J]. J Urol,2007,178:1992 - 1997. J Urol,2008,180(1) :413;author reply413.
8Mariappan P,Smith SA, Moussa G,et al. One week of ciprofloxacinbefore percutaneous nephrolithotomy significantly reduces uppertract infection and urosepsis: a prospective controlled study [ J].BJU Int, 2006,98(5) : 1075 -1079.
9Brook I. Urinary tract and genito - urinary suppurative infectionsdue to anaerobic bacteria [ J ]. Int J Urol, 2004,11(3):133 -141.
10Mariappan P, Loong CW. Midstream urine culture and sensitivitytest is a poor predictor of infected urine proximal to the obstructingureteral stone or infected stones: a prospective clinical study[ J]. JUrol, 2004,171(6 Pt 1) :2142 -2145.
