Citrobacter freundiiCitrobacterCitrobacter rodentiumEnterobacteriaceae InfectionsTyrosine Phenol-LyaseEscherichiaCitrobacter koseriEnterobacteriaceaeCephalosporinasebeta-LactamasesEnterobacterEnterobacter cloacaeMicrobial Sensitivity TestsCefotaximeDicloxacillinPyronineSerratiaGram-Negative BacteriaProteus vulgarisCephalosporinsUranium CompoundsAnti-Bacterial AgentsEscherichia coliBacteriaCeftazidimeDNA, BacterialKlebsiella oxytocaMolecular Sequence DataSerratia marcescensCefotiamBacterial ProteinsGenes, BacterialCefmenoximeMonobactamsCephaloridinebeta-LactamsDrug Resistance, MicrobialPlasmidsPenicillinaseCephalosporin ResistanceKlebsiellaCloxacillinbeta-Lactam ResistanceThienamycinsGram-Positive BacteriaConjugation, GeneticLindaneCefiximeProteus mirabilisCarbapenemsSequence Analysis, DNAAmpicillinKlebsiella pneumoniaeProteusPenicillanic AcidSalmonellaCeftizoximeBase SequenceIsoelectric FocusingEscherichia coli ProteinsChromosomes, BacterialImipenemRNA, Ribosomal, 16S