Screening for neural-tube defects.
D000653:Amniotic Fluid / Q000032:analysis; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011296:Prenatal Diagnosis; D016136:Spina Bifida Occulta / Q000175:diagnosis*; D000509:alpha-Fetoproteins / Q000032:analysis
D000509:alpha-Fetoproteins