title: Antenatal predictors for Down's syndrome.
authors.forename: W
authors.initials: W
authors.lastname: O'Brien
mesh_terms: D000886:Anthropometry / Q000379:methods*; D004314:Down Syndrome / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000453:epidemiology; D005069:Evaluation Studies as Topic; D005260:Female; D005333:Fetus / Q000033:anatomy & histology*; D013006:Growth Hormone / Q000097:blood*; D006801:Humans; D008423:Maternal Age; D011237:Predictive Value of Tests; D011247:Pregnancy / Q000097:blood*; D012307:Risk Factors; D014463:Ultrasonography; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D000509:alpha-Fetoproteins; D013006:Growth Hormone