Clavulanic AcidClavulanic AcidsAmoxicillin-Potassium Clavulanate CombinationTicarcillinAmoxicillinbeta-LactamasesSulbactamPenicillanic Acidbeta-LactamsCephamycinsAnti-Bacterial AgentsStreptomycesMicrobial Sensitivity TestsUreohydrolasesPenicillinsLactamsCephalosporinasebeta-Lactam ResistancePenicillinaseIsoelectric FocusingDrug CombinationsCephalosporinsPiperacillinThienamycinsAmpicillinAztreonamPenicillin ResistanceKlebsiella pneumoniaeCeftazidimeDicloxacillinPenicillin GDrug Therapy, CombinationAzlocillinEnterobacteriaceaeImipenemCarbenicillinAza CompoundsOchrobactrum anthropiDrug Resistance, BacterialKlebsiellaCloxacillinMonobactamsPlasmidsDrug SynergismPremedicationBacterial ProteinsBacteroides fragilisDrug Resistance, MicrobialBacterial InfectionsEscherichia coliGenes, BacterialBacteriaMolecular Sequence DataKineticsAmpicillin ResistanceColorectal SurgeryCefoxitinMultigene FamilyCephalothinCephalosporin ResistanceSulfadimethoxineThermotoga neapolitanaCefuroximeProteusEnzyme InhibitorsOtitis Media, SuppurativeCefotaximeEnterobacter cloacaeKlebsiella oxytocaSequence Analysis, DNABacteroides Infections