Non-invasive test for Down's syndrome.
D015415:Biomarkers / Q000097:blood; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First / Q000097:blood*; D011266:Pregnancy-Associated Plasma Protein-A / Q000032:analysis*; D011296:Prenatal Diagnosis / Q000379:methods*
D015415:Biomarkers; D011266:Pregnancy-Associated Plasma Protein-A