Clavulanic AcidClavulanic AcidsAmoxicillin-Potassium Clavulanate CombinationTicarcillinAmoxicillinbeta-LactamasesSulbactamPenicillanic Acidbeta-LactamsAnti-Bacterial AgentsCephamycinsStreptomycesIncidenceMicrobial Sensitivity TestsUreohydrolasesPenicillinsLactamsCephalosporinasebeta-Lactam ResistanceDrug CombinationsPenicillinaseCephalosporinsIsoelectric FocusingPiperacillinThienamycinsAmpicillinAztreonamPenicillin ResistanceKlebsiella pneumoniaeCeftazidimeDrug Therapy, CombinationDicloxacillinPenicillin GAzlocillinEnterobacteriaceaeImipenemCarbenicillinAza CompoundsDrug Resistance, BacterialOchrobactrum anthropiKlebsiellaPremedicationCloxacillinPlasmidsBacterial InfectionsMonobactamsDrug SynergismDrug Resistance, MicrobialBacterial ProteinsBacteroides fragilisBacteriaEscherichia coliMolecular Sequence DataGenes, BacterialAmpicillin ResistanceKineticsColorectal SurgeryCefoxitinCephalothinMultigene FamilyCephalosporin ResistanceSulfadimethoxineThermotoga neapolitanaCefuroximeProteusEnzyme InhibitorsOtitis Media, SuppurativeCefotaximeEnterobacter cloacaeKlebsiella oxytocaSequence Analysis, DNABacteroides InfectionsDrug Hypersensitivity