Maternal serum alpha-fetoprotein screening for the early antenatal detection of neural tube defects.
D000649:Amniocentesis; D000653:Amniotic Fluid / Q000378:metabolism; D005260:Female; D005865:Gestational Age; D006801:Humans; D009436:Neural Tube Defects / Q000175:diagnosis*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012306:Risk; D000509:alpha-Fetoproteins / Q000378:metabolism*
D000509:alpha-Fetoproteins