title: Letter: Raised alpha-fetoprotein levels and congenital defect.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis; D005260:Female; D005326:Fetal Proteins / Q000032:analysis*; D006801:Humans; D007231:Infant, Newborn; D009421:Nervous System Malformations; D011247:Pregnancy; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D005326:Fetal Proteins; D000509:alpha-Fetoproteins