Ozgunes, Ilhan The prevalence of extended-spectrum beta lactamase-producing Escherichia coli and Klebsiella pneumoniae in clinical isolates and risk factors. [electronic resource] - Saudi medical journal May 2006 - 608-12 p. digital Publication Type: Journal Article ISSN: 0379-5284 Subjects--Topical Terms: AdultAnti-Infective Agents--administration & dosageCatheters, Indwelling--adverse effectsEscherichia coli--enzymologyEscherichia coli Infections--epidemiologyFemaleGeneral SurgeryHospitals, TeachingHumansIntubation--adverse effectsKlebsiella pneumoniae--enzymologyMaleMicrobial Sensitivity TestsPneumonia, Bacterial--complicationsPrevalenceRisk FactorsTurkeyUrinary Catheterization--adverse effectsVentilators, Mechanical--adverse effectsbeta-Lactamases--biosynthesis