Relation between maternal serum and amniotic fluid AFP.
D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D005865:Gestational Age; D006801:Humans; D009436:Neural Tube Defects / Q000097:blood; D011247:Pregnancy; D000509:alpha-Fetoproteins / Q000032:analysis*
D000509:alpha-Fetoproteins