Original ArticleLong-term study of the frequency of Escherichia coli and Klebsiella pneumoniae isolates producing extended-spectrum β-lactamases
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Keywords
Cephalosporin resistance
epidemiology
Escherichia coli
extended-spectrum β-lactamases
Klebsiella pneumoniae
nosocomial infection
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Copyright © 2005 European Society of Clinical Infectious Diseases. Published by Elsevier Ltd. All rights reserved.