1[1]Palucha A, Mikiewicz B, Gniadkowski M. Diversification of Escherichia coli expressing an SHV-type extended-spectrum beta-lactamase(ESBL) during a hospital outbreak:emergence of an ESBL-hyperproducing strain resistant to expanded-spectrum cephalosporins [J ]. Antimicrob Agents Chemother, 1999,43(2):393.
2[2]Yagi T, Kurokawa H, Shibata N, et al. Preliminary survey of extended-spectrum-lactamases in clinical isolates of Klebsiella pneumoniae and Escherichia in Japan[J]. PEMS Microbiol Lett, 2000,184: 53.
3[3]Bedenic B, Zagar Z. Extended-spectrum beta-lactamases in clinical isolates of Klebsiella pneumoniae from Zagreb,Croatia[J]. J Chemother,1998,10(6) :449.
4[4]NCCLS Disk Diffusion Supplemental Tables. M100-S10(M2) January2000.
