Unaltered penicillin susceptibility of streptococci; study of alpha hemolytic streptococci causing endocarditis, 1944 to 1954.
D001432:Bacteriology; D004696:Endocarditis; D004698:Endocarditis, Subacute Bacterial / Q000382:microbiology*; D006801:Humans; D010406:Penicillins / Q000494:pharmacology*; D013291:Streptococcus / Q000187:drug effects*
D010406:Penicillins
ENDOCARDITIS, SUBACUTE BACTERIAL/bacteriology; PENICILLIN/effects; STREPTOCOCCUS/effect of drugs on