1. Performance standards for antimicrobial susceptibility testing,1998
2. Beta-lactamases: quantity and resistance;Livermore;Clin Microbiol Infect,1997
3. A functional classification scheme for beta-lactamases and its correlation with molecular structure;Bush;Antimicrob Agents Chemother,1995
4. The structure of beta-lactamases;Ambler;Phil Trans R Soc Lond [Biol],1980
5. Jacoby G. Amino acid sequences for TEM, SHV and OXA extended-spectrum and inhibitor resistant β-lactamases. Online. Available: http://www.lahey.org/Studies/