title: First-trimester nasal bone evaluation for aneuploidy in the general population.
authors.forename: Allan
authors.initials: A
authors.lastname: Nadel
mesh_terms: D000782:Aneuploidy; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D009295:Nasal Bone / Q000000981:diagnostic imaging / Q000196:embryology*; D011237:Predictive Value of Tests; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D016216:Ultrasonography, Prenatal