Screening for Down's syndrome. Data do not support study's claim.
Norgaard-Pedersen
B
B
D000328:Adult; D000649:Amniocentesis; D015415:Biomarkers / Q000097:blood; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D005865:Gestational Age; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D018566:Pregnancy, High-Risk; D011296:Prenatal Diagnosis / Q000706:statistics & numerical data*; D016216:Ultrasonography, Prenatal
D015415:Biomarkers