title: The continuous treatment of early syphilis by arsphenamin and heavy metals.
mesh_terms: D001153:Arsphenamine / Q000627:therapeutic use; D004358:Drug Therapy / Q000266:history*; D049673:History, 20th Century; D049711:History, Modern 1601-; D006801:Humans; D008670:Metals / Q000627:therapeutic use; D013587:Syphilis / Q000188:drug therapy / Q000266:history*
chemical_list: D008670:Metals; D001153:Arsphenamine