Determination of maternal serum acetylcholinesterase in pregnancies with fetal neural tube defects.
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D000110:Acetylcholinesterase / Q000097:blood*; D005260:Female; D006801:Humans; D008431:Maternal-Fetal Exchange; D009436:Neural Tube Defects / Q000201:enzymology*; D011247:Pregnancy
D000110:Acetylcholinesterase