Penicillin-resistant Streptococcus viridans.
D004697:Endocarditis, Bacterial / Q000188:drug therapy / Q000382:microbiology; D006801:Humans; D010403:Penicillin Resistance; D010406:Penicillins / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D013290:Streptococcal Infections / Q000188:drug therapy; D013291:Streptococcus / Q000187:drug effects*
D010406:Penicillins