3Coudron P E, Moland E S ,Thomson K S. Occurrence and detection of AmpC beta-lactamases among Escherichia coli , Klebsiella pneumoniae, and Proteus mirabilis isolates at a veterans medical center[J]. J Clin Mircrobiol,2000,38 (5): 1791-1796.
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2Pai H, Lyu S, Lee JH, et al. Survey of extended-spectrum β-lactamases in clinical isolates of Escherichia coli and Klebsiella pneumoniae: prevalence of TEM-52 in Korea. J Clin Microbiol,1999, 37:1758-1763.
3Coudron PE, Moland ES, Thomson KS. Occurrence and detection of AmpC Beta-lactamases among Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis isolates at a veterans medical center. J Clin Microbiol, 2000,38:1791-1796.
4Kopp U, Wiedemann B, Lindquist S, et el. Sequences of wide-type and mutant ampD genses of Citrobacter freundii and Enterobacter cloacae. Antimicrob Agents Chemother, 1993,224-228.
5National Committee for Clinical Laboratory Standards. Performance standards for antimicrobial susceptibility testing ninth information [S].Standard M100-S9. Pennsylvania: NCCLS, 1999.1-103.
6Coudron P E, Moland E S, Thomson K S. Occurrence and detection of beta-lactamases among Escherichia coli, Klebsiella , and Proteus mirabilis isolmes at a veterans medical center [ J ]. J Clin Microbiol,2000,38(5) : 1791-1796.
7Tzouvelekis L S, Vatopoulos A C, Katsanis G, et a]. Rare case of failure by an automated system to detect extended-spectrum heta-lactamases in a cephalosporin-resistant Klebsiella pnemoniae isolate [ J ]. J Clin Microbiol. 1999.37(7) :2388.
8Pai H, Lyu S, Lee J H, et al. Survey of extended-spectrum beta-lactamases in clinical isolates of Escherichia coli and Klebsiella pneumoniae: prevalence of TEM-52 in Korea[J]. J Clin Microbiol, 1999,37(6) : 1758- 1763.
9Bush K,Jacoby G A, Medeiros A A. A function classification scheme for beurlactamases and its correlation with molecular structure [ J ]. Antimicrob Agents Chemother, 1995,39(3) : 1211-1233.
10Coudron P E, Moland E S, Thomson K S. Occurrence and detection of AmpC beta-lactamases among E. coli,Klebsiella pneumoniae, and Proteus mirabilis isolates at a veterans medical center[J]. J Clin Mircrobiol,2000,38 (5) :1791-1796.
