title: Hepatitis B virus and sex ratio of offspring in East Greenland.
mesh_terms: D005260:Female; D006116:Greenland; D006509:Hepatitis B / Q000453:epidemiology* / Q000276:immunology; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D008297:Male; D012744:Sex Ratio
chemical_list: D006514:Hepatitis B Surface Antigens