title: Letter: Hepatitis-B antigen in venereal diseases.
mesh_terms: D000208:Acute Disease; D001782:Blood Donors; D005260:Female; D006069:Gonorrhea / Q000276:immunology*; D006386:Hemagglutination Tests; D006511:Hepatitis B Antigens / Q000302:isolation & purification*; D006801:Humans; D008297:Male; D013587:Syphilis / Q000276:immunology
chemical_list: D006511:Hepatitis B Antigens