title: First-trimester nuchal translucency and maternal serum biochemical screening for Down's syndrome: a happy union?
authors.affiliation: Academic Department of Obstetrics and Gynaecology, Homerton Hospital, London, UK.
authors.forename: B
authors.initials: B
authors.lastname: Thilaganathan
mesh_terms: D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood*; D004314:Down Syndrome / Q000097:blood / Q000175:diagnosis*; D005260:Female; D005323:Fetal Monitoring / Q000379:methods*; D005865:Gestational Age; D006801:Humans; D008403:Mass Screening / Q000379:methods; D009333:Neck / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011266:Pregnancy-Associated Plasma Protein-A / Q000032:analysis*; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D016216:Ultrasonography, Prenatal
chemical_list: D018997:Chorionic Gonadotropin, beta Subunit, Human; D011266:Pregnancy-Associated Plasma Protein-A