Penicillin-resistant pneumococcus and meningitis.
D000368:Aged; D005260:Female; D006801:Humans; D008586:Meningitis, Pneumococcal / Q000188:drug therapy*; D010403:Penicillin Resistance; D010406:Penicillins / Q000627:therapeutic use*
D010406:Penicillins