5Dowson CG.Coffey Tj.Sprat BG.Origin and molecular epidemiology of Penicillin-binding-proteinmediated resistance to beta-lactam antibiotics[J].Trends Microbiol,1994,2(10):361.
6Bergogne-Berezin E. Guideline on antimicrobial chemotherapy for prevention and treatment of infections in the ICU. J Chemother, 2001,1: 134-149.
7Goossens H. MYSTIC program: summary of European data from 1997 to 2000. Diagn Microbiol Infect Dis, 2001, 41: 183-189.
8Leblebicioglu H, Gunaydin M, Esen S, et al. Surveillance of antimicrobial resistance in gram-negative isolates from ICU in Turkey:analysis of data from the last 5 years. J Chemother, 2002, 14:140-146.
9Karlowsky JA, Kelly LJ, Thornsberry C , et al. Susceptibility to fluoroquinolones among commonly isolated Gram-negative bacilli in 2000:TRUST and TSN data for the United States. J Autimicrob Agents , 2002,19: 21-31.
10National Committee for Clinical Laboratory Standards. 2002. Performance standards for antimicrobial susceptibility testing. Approved standard M100-S12. National Committee for Clinical Laboratory Standards,Wayne, Pa.2002,1.