CeftizoximeCephalosporinsCefotaximeCephalosporin ResistanceAcremoniumCefoxitinMicrobial Sensitivity TestsCefmetazoleCefazolinAnti-Bacterial AgentsCefamandoleCefonicidCeftriaxoneBacteroides fragilisbeta-LactamasesFormularies, HospitalBacteriaCefotiamCefoperazoneCefuroximeCephalexinCefotetanCephalosporinaseEnterobacterCephamycinsCephalothinPenicillinsCefmenoximeCephaloridineDrug StabilityEnterobacteriaceaePenicillin AmidaseHospital Bed Capacity, 500 and overDrug Resistance, MicrobialBacteroides InfectionsPenicillin ResistancePenicillin GMoxalactamLactamsBlisterCefaclorCefiximeCeftazidimeBacteria, Anaerobicbeta-LactamsBacterial InfectionsPenicillin-Binding ProteinsAmikacinGram-Negative BacteriaCephradineGram-Positive BacteriaPenicillinaseAntibiotic ProphylaxisBacteroidesAcetylesteraseMuramoylpentapeptide CarboxypeptidaseBlood Proteins