Current status of syphilis and other venereal diseases.
D006069:Gonorrhea / Q000188:drug therapy / Q000453:epidemiology*; D006801:Humans; D010402:Penicillin G Procaine / Q000627:therapeutic use; D013587:Syphilis / Q000188:drug therapy / Q000453:epidemiology*; D014481:United States
D010402:Penicillin G Procaine