[Penicillin-resistant pneumococci].
Shah
P M
PM
D006801:Humans; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*; D013296:Streptococcus pneumoniae / Q000187:drug effects*
D010406:Penicillins
Penicillin-resistente Pneumokokken.