%0 Journal Article %T A simple and reliable method to screen isolates of Escherichia coli and Klebsiella pneumoniae for the production of TEM- and SHV-derived extended-spectrum β-lactamases %A Thomson, Kenneth S. %A Sanders, Christine C. %A , %J Clinical Microbiology and Infection %@ 1198-743X %D 1997-10-01 %I Elsevier BV %~ DeepDyve