Penicillin resistance of staphylococci carried by infants and young children.
D008837:Micrococcus / Q000187:drug effects*; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*; D013210:Staphylococcus
D010406:Penicillins
MICROCOCCUS/effect of drugs on; PENICILLIN/effects