CeftizoximePenicillinsPenicillin GCefotaximePenicillin ResistancePenicillin VCephalosporinsPenicillin G ProcaineAnti-Bacterial AgentsMicrobial Sensitivity TestsPenicillin AmidaseDrug Resistance, MicrobialCefoxitinPenicillin G BenzathineCefmetazoleDrug Resistance, BacterialDrug ResistanceBacteroides fragilisFormularies, HospitalCefazolinCefonicidCefoperazoneBacteroides InfectionsCefamandoleCephalosporin ResistanceDrug Resistance, NeoplasmLactamsbeta-LactamasesHospital Bed Capacity, 500 and overDrug Resistance, MultipleCefotetanBacteriaStreptococcus pneumoniaePenicillin-Binding ProteinsCefuroximeCefotiamCeftriaxoneDrug Resistance, Multiple, BacterialCephamycinsPenicillinaseDisease Resistancebeta-LactamsMoxalactamVascular ResistanceBlisterEnterobacterAmpicillinDrug Resistance, ViralMuramoylpentapeptide CarboxypeptidasePeptidyl TransferasesHexosyltransferasesEscherichia coliAmikacinPneumococcal InfectionsBacteria, AnaerobicNeisseria gonorrhoeaeBacterial ProteinsErythromycinBacteroidesEnterobacteriaceaeStreptococcal InfectionsDrug StabilityTetracycline ResistanceCulture MediaMutationTetracycline