title: Doxycycline in early syphilis: a long term follow up.
mesh_terms: D000328:Adult; D004318:Doxycycline / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D008297:Male; D013587:Syphilis / Q000188:drug therapy*; D013588:Syphilis Serodiagnosis
chemical_list: D004318:Doxycycline