ImipenemThienamycinsCilastatinCarbapenemsAnti-Bacterial AgentsMicrobial Sensitivity Testsbeta-LactamasesCeftazidimePseudomonas aeruginosaAcinetobacter baumanniiAcinetobacter InfectionsGram-Negative BacteriaPiperacillinGram-Negative Bacterial InfectionsKlebsiella pneumoniaeDrug Resistance, BacterialAcinetobacterDrug Resistance, Multiple, BacterialCephalosporinsPseudomonas InfectionsDrug Resistance, MicrobialBacteria, AnaerobicPenicillanic AcidEnterobacteriaceaeSulbactambeta-LactamsAmikacinIntraabdominal InfectionsKlebsiella InfectionsBacteroides fragilisDipeptidasesLactamsGram-Positive BacteriaEnterobacteriaceae InfectionsCross InfectionMonobactamsBacterial InfectionsColistinbeta-Lactam ResistanceEnterobacter cloacaePneumonia, BacterialAnti-Infective AgentsCyclopropanesTobramycinDrug Therapy, CombinationBacterial ProteinsPenicillin-Binding ProteinsCiprofloxacinClavulanic AcidCephalosporinaseMinocyclineMuramoylpentapeptide CarboxypeptidasePeptidyl TransferasesPenicillinsCefotaximeHexosyltransferasesSerratia InfectionsBacteremiaDisk Diffusion Antimicrobial TestsDrug CombinationsBacteria, AerobicCeftriaxoneCefoxitinAmpicillinColony Count, MicrobialCloxacillinGentamicinsFluoroquinolonesGram-Positive Bacterial InfectionsEscherichia coliIsoelectric FocusingDrug SynergismAbdominal AbscessAztreonamElectrophoresis, Gel, Pulsed-FieldBacterial Outer Membrane ProteinsAmpicillin ResistancePorinsMeningitis, BacterialBacteriaAzabicyclo CompoundsNafcillinNocardia InfectionsIntensive Care UnitsInfusions, IntravenousVancomycinHospitalsSerratia marcescensBacteroides InfectionsClindamycinDNA, BacterialStaphylococcus aureusOfloxacinHydrolysisEnterobacterHemofiltrationHospitals, UniversityCephalosporin ResistancePlasmidsPeritonitis