title: Antitryptic activity in amniotic fluid.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D005260:Female; D006801:Humans; D009436:Neural Tube Defects / Q000378:metabolism; D011247:Pregnancy; D014361:Trypsin Inhibitors / Q000032:analysis*; D000515:alpha 1-Antitrypsin / Q000032:analysis*
chemical_list: D014361:Trypsin Inhibitors; D000515:alpha 1-Antitrypsin