4NNIS system. National Nosoeomial Infections Surveillance(NNIS) System Report, data summary from January 1992 through June 2004, issued October 2004[J]. Am J Infect Control, 2004,32(8) ,470-485.
5Leone M, Albanese J, Garnier F, et al. Risk factors of nosocomial catheter-associated urinary tract infection in a polyvalent intensive care unit[J]. Intensive Care Med, 2003, 29 (7) : 1077-1080.
6Bagshaw SM, Laupland KB. Epidemiology of intensive care unit-acquired urinary tract infections[J]. Curr Opin Infect Dis, 2006,19( 1 ) :67-71.
7Leone M, Garnier F, Avidan M, et al. Catheter-associated urinary tract infections in intensive care unitsl[J]. Microbes Infect, 2004,6( 1 1 ) : 1026-1032.