2Clinical and Laboratory Standards Institute/NCCLS. Performance standards for antimicrobial susceptibility testing, Fifteenth infor- mational supplement CLSI/NCCLS documentM100-S15[S]. Clini- cal and Laboratory Standards Institute Wayne Pennsylvania, 2005,25(1) :1-106.
3Bouadma L, Wolff M, Lucet JC. Ventilator-associated pneumonia and its prevention[J]. Curt Opin Infect Dis,2012,25(4):395.
6Lee SO,Kim NJ, ChoJ SH,etal. Risk factors for acquisition of imipenem-resistant Acinetobacter baumannii : a case-control study[J]. Antimicrob Agents Chemother, 2004,48 : 224- 228.
7Appelbaum PC. The emergence of vancomycin-intermediate and vancomycin-resistant Staphylococcus aureus [J]. Clin Microbiol Infect,2006,12(Supp 11) :16-23.
8Aloush V,Navon-Venezia S,Seigfman-Igra et al Multi-drug-resistant Pseudomonas aeruginosa:risk factors and clinical impact[J].Antimicrob Agents Chemother,2006,50(1):43-48.
