Epidemiology of persistent hepatitis B virus infection.
D001782:Blood Donors; D002353:Carrier State / Q000453:epidemiology*; D005260:Female; D006509:Hepatitis B / Q000453:epidemiology* / Q000208:ethnology; D006801:Humans; D008296:Malaysia; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology