Perinatal diagnosis of the inborn errors of metabolism.
D000653:Amniotic Fluid / Q000032:analysis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008375:Maple Syrup Urine Disease / Q000175:diagnosis / Q000235:genetics; D008661:Metabolism, Inborn Errors / Q000175:diagnosis* / Q000652:urine; D011247:Pregnancy