Letter: Slide test for alpha-fetoprotein.
D002490:Central Nervous System / Q000002:abnormalities; D005260:Female; D005326:Fetal Proteins / Q000032:analysis*; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D000509:alpha-Fetoproteins / Q000032:analysis*
D005326:Fetal Proteins; D000509:alpha-Fetoproteins