title: The effect of previous antisyphilitic treatment on present treatment, as indicated by the records from the nation-wide study of penicillin in syphilis.
authors.forename: R V
authors.initials: RV
authors.lastname: RIDER
mesh_terms: D000993:Antitreponemal Agents; D006801:Humans; D010406:Penicillins; D013587:Syphilis
chemical_list: D000993:Antitreponemal Agents; D010406:Penicillins