1National Committee for Clinical Laboratory Standards. Performance standards for antimicrobial susceptibility testing. Ninth informational supplement[M]. NCCLS document M 100-s9. Wayne, Pennsylvania: NCCLS, 1996,20-36
2Rebuck JA , Olsen KM, Fey PD, et al. In vitro activities of parenteral beta-lactam antimicrobials against TEM-10-, TEM-26- and SHE -5-derived extended-spectrum beta-lactamases expressed in an isogenic Escherichia coli host[J]. J Antimicrob Chemother, 2000
3Pfaller MA, Acar J, Jones RN, et al. Integration of molecular characterization of microorganisms in a global antimicrobial resistance surveillance program[J]. Clin Infect Dis, 2001,15:S156-S167
4Thomson KS. Controversies about extended-spectrum and AmpC beta-lactamases[J]. Emerg Infect Dis, 2001,7: 333-336
