More on maternal serum alpha-fetoprotein: problems with a test kit.
D005260:Female; D006801:Humans; D009436:Neural Tube Defects / Q000175:diagnosis; D011247:Pregnancy; D011933:Reagent Kits, Diagnostic / Q000592:standards*; D000509:alpha-Fetoproteins / Q000032:analysis*
D011933:Reagent Kits, Diagnostic; D000509:alpha-Fetoproteins