AmpicillinAmpicillin ResistanceAnti-Bacterial AgentsMicrobial Sensitivity TestsSulbactamPenicillinsAntibiotic ProphylaxisDrug Resistance, MicrobialPenicillin ResistancePivampicillinDrug Resistance, BacterialGentamicinsChloramphenicolbeta-LactamsTetracyclineEscherichia colibeta-LactamasesPenicillin GCephalosporinsAminoglycosidesHaemophilus influenzaeDrug Resistance, Multiple, BacterialBacteriaBacterial InfectionsCloxacillinR FactorsTrimethoprimStreptomycesAmoxicillinPenicillinaseCephalexinCephaloridineEnterobacteriaceaeSulfamethoxazoleEnterococcus faecalisPenicillanic AcidStreptomycinAntibiotics, AntineoplasticKanamycinGram-Positive Bacterial InfectionsErythromycinCarbenicillinAnti-Infective Agents