title: A cholinesterase isoenzyme of fetal origin: a potential diagnostic marker.
mesh_terms: D000649:Amniocentesis; D000653:Amniotic Fluid / Q000201:enzymology*; D002802:Cholinesterases / Q000097:blood*; D005260:Female; D006554:Hernia, Umbilical / Q000175:diagnosis; D006801:Humans; D007527:Isoenzymes / Q000097:blood*; D009436:Neural Tube Defects / Q000175:diagnosis*; D011247:Pregnancy
chemical_list: D007527:Isoenzymes; D002802:Cholinesterases