A-B-O(H) blood group substances in the human maternal-fetal barrier and amniotic fluid.
D000653:Amniotic Fluid; D001789:Blood Group Antigens; D005260:Female; D006801:Humans; D010920:Placenta / Q000502:physiology*; D011247:Pregnancy
D001789:Blood Group Antigens
AMNIOTIC FLUID; BLOOD GROUPS; PLACENTA/physiology