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Rapid detection of B2-ST131 clonal group of extended-spectrum β-lactamase–producing Escherichia coli by matrix-assisted laser desorption ionization–time-of-flight mass spectrometry: discovery of a peculiar amino acid substitution in B2-ST131 clonal group

Antimicrobial Drug DiscoveryBiochemistryMedicineNatural SciencesBioanalysisMass SpectrometryBiological Mass SpectrometryBacteriologyMolecular BiologyMicrobial ProteomicsMicrobiologyMolecular MicrobiologyB2-st131 Clonal GroupRapid DetectionBacterial PathogensClinical MicrobiologyDiagnostic Microbiology