title: Transvaginal sonographic examination of the fetal nasal bone is unable to predict Down syndrome at 14-16 weeks' gestation.
authors.forename: M
authors.initials: M
authors.lastname: Bronshtein
authors.forename: S
authors.initials: S
authors.lastname: Blazer
authors.forename: E Z
authors.initials: EZ
authors.lastname: Zimmer
mesh_terms: D004314:Down Syndrome / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D009295:Nasal Bone / Q000000981:diagnostic imaging* / Q000196:embryology; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D012680:Sensitivity and Specificity; D016216:Ultrasonography, Prenatal / Q000592:standards*