The incidence of penicillin-resistant staphylococci in a semi-closed community.
D015994:Incidence; D008837:Micrococcus; D010406:Penicillins / Q000494:pharmacology*; D012111:Residence Characteristics; D013210:Staphylococcus
D010406:Penicillins
MICROCOCCUS; PENICILLIN/effects