title: Amniotic fluid and maternal serum amino acid levels in malformations of fetal central nervous system.
mesh_terms: D000596:Amino Acids / Q000032:analysis* / Q000097:blood; D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D006801:Humans; D008431:Maternal-Fetal Exchange; D009436:Neural Tube Defects / Q000175:diagnosis*; D011247:Pregnancy; D011296:Prenatal Diagnosis
chemical_list: D000596:Amino Acids