Prevalence of HBsAg in UK population.
D002353:Carrier State / Q000453:epidemiology*; D004739:England; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006801:Humans; D011247:Pregnancy
D006514:Hepatitis B Surface Antigens