Letter: Alpha-fetoprotein as an indicator of fetal condition.
D000653:Amniotic Fluid / Q000032:analysis*; D000757:Anencephaly / Q000175:diagnosis*; D005260:Female; D005326:Fetal Proteins / Q000032:analysis*; D006801:Humans; D005779:Immunodiffusion; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D011263:Pregnancy Trimester, Third; D011296:Prenatal Diagnosis; D000509:alpha-Fetoproteins / Q000032:analysis*
D005326:Fetal Proteins; D000509:alpha-Fetoproteins