Controlled study of streptococcal endocarditis--a problem of feasibility.
D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D004697:Endocarditis, Bacterial / Q000188:drug therapy* / Q000401:mortality; D006801:Humans; D010406:Penicillins / Q000627:therapeutic use*; D011446:Prospective Studies; D012008:Recurrence; D012107:Research Design / Q000592:standards*; D013290:Streptococcal Infections / Q000188:drug therapy*
D000900:Anti-Bacterial Agents; D010406:Penicillins