Maternal transmission of hepatitis B.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002353:Carrier State; D002648:Child; D002675:Child, Preschool; D004259:DNA-Directed DNA Polymerase / Q000097:blood; D005260:Female; D006509:Hepatitis B / Q000097:blood / Q000635:transmission*; D006511:Hepatitis B Antigens / Q000032:analysis; D006801:Humans; D008297:Male; D008431:Maternal-Fetal Exchange; D008875:Middle Aged; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious
D006511:Hepatitis B Antigens; D004259:DNA-Directed DNA Polymerase