title: Selection and validation of alpha-fetoprotein assay kits for the screening of Down syndrome.
mesh_terms: D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D009436:Neural Tube Defects / Q000175:diagnosis; D011247:Pregnancy; D011296:Prenatal Diagnosis; D011933:Reagent Kits, Diagnostic; D013223:Statistics as Topic; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D011933:Reagent Kits, Diagnostic; D000509:alpha-Fetoproteins