CephaloridineCephalothinCephalosporinsCephalosporinasePenicillinasePenicillin GCefazolinCephalexinCloxacillinMandelic Acidsbeta-LactamsBromobenzenesAnti-Bacterial AgentsAnion Exchange Resinsbeta-LactamasesAmpicillinPenicillin ResistancePenicillinsProteusDrug Resistance, MicrobialL-Iditol 2-DehydrogenaseMicrobial Sensitivity TestsLincomycinProteus vulgarisCitrobacterStaphylococcusEnterobacterCefoxitinKlebsiellaProbenecidMethicillin