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Ambler class A extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella spp. in Canadian hospitals.
Mulvey MR, Bryce E, Boyd D, Ofner-Agostini M, Christianson S, Simor AE, Paton S; Canadian Hospital Epidemiology Committee, Canadian Nosocomial Infection Surveillance Program, Health Canada. Mulvey MR, et al. Antimicrob Agents Chemother. 2004 Apr;48(4):1204-14. doi: 10.1128/AAC.48.4.1204-1214.2004. Antimicrob Agents Chemother. 2004. PMID: 15047521 Free PMC article.