Hepatitis B in infants.
D002675:Child, Preschool; D005260:Female; D006509:Hepatitis B; D006511:Hepatitis B Antigens; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011248:Pregnancy Complications
D006511:Hepatitis B Antigens