title: Sexual transmission of the hepatitis B virus.
mesh_terms: D005260:Female; D006509:Hepatitis B / Q000635:transmission*; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans; D007194:India; D008297:Male; D012749:Sexually Transmitted Diseases / Q000635:transmission*
chemical_list: D006514:Hepatitis B Surface Antigens