title: Treatment of early infectious syphilis in Denmark. A retrospective serological study.
mesh_terms: D003718:Denmark; D006801:Humans; D010401:Penicillin G Benzathine / Q000627:therapeutic use*; D010402:Penicillin G Procaine / Q000627:therapeutic use*; D012189:Retrospective Studies; D013587:Syphilis / Q000188:drug therapy*; D013588:Syphilis Serodiagnosis
chemical_list: D010402:Penicillin G Procaine; D010401:Penicillin G Benzathine