1Bradford PA,Urban C,Mariano N,et al.Imipenem resistance in Klebsiella pneumoniae is associated with the combination of ACT-1,a plasmid-mediated AmpC beta-lactamase,and the foss of an outer membrane protein[J].Antimicrob Agents Chemother,1997,41(3):563
2Ahmad M,Urban C,Mariano N,et al.Clinical characteristics and molecular epidemiology associated with imipenem-resistant Klebsiella pneumoniae[J].Clin Infect Dis,1999,29(2):352
3Quale JM,Landman D,Bradgord PA,et al.Molecular epidemiology of a citywide outbreak of extended-spectrum beta-lactamase-producing Klebsiella pneumoniae infection[J].Clin Infect Dis,2002,35(7):834
4Bouza E,Cercenado E.Klebsiella and enterobacter:antibiotic resistance and treatment implications[J].Semin Respir Infect ,2002,17(3):215
5Cao VT,Arlet G,Ericsson BM,et al.Emergence of imipenem resistance in Klebsiella pneumoniae owing to combination of plasmid-mediated CMY-4 and permeability alteration[J].J Antimicrob Chemother,2000,46(6):895