title: Nuchal translucency and first-trimester screening.
authors.forename: Walter G
authors.initials: WG
authors.lastname: Harry
authors.forename: Kathryn L
authors.initials: KL
authors.lastname: Reed
mesh_terms: D015415:Biomarkers / Q000097:blood; D002983:Clinical Competence; D004314:Down Syndrome / Q000175:diagnosis*; D005260:Female; D006801:Humans; D048208:Nuchal Translucency Measurement / Q000592:standards / Q000706:statistics & numerical data; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D015203:Reproducibility of Results; D018570:Risk Assessment; D012680:Sensitivity and Specificity
chemical_list: D015415:Biomarkers