[CLINICAL TRIALS OF NEW SEMI-SYNTHETIC PENICILLINS: METHICILLIN, OXACILLIN, AMPICILLIN].
D000667:Ampicillin; D004351:Drug Resistance; D004352:Drug Resistance, Microbial; D006801:Humans; D007239:Infections; D008712:Methicillin; D010068:Oxacillin; D010404:Penicillin V / Q000031:analogs & derivatives; D010406:Penicillins
D010406:Penicillins; D000667:Ampicillin; C100209:phenethicillin; D008712:Methicillin; D010068:Oxacillin; D010404:Penicillin V
DRUG RESISTANCE, MICROBIAL; INFECTION; METHICILLIN; PENICILLIN; PENICILLIN, PHENOXYMETHYL; PHENETHICILLIN