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Nasal bone assessment in fetuses with trisomy 21 at 16-24 weeks of gestation by three-dimensional ultrasound.
Persico N, Molina F, Azumendi G, Fedele L, Nicolaides KH.
Prenat Diagn 2012;32:240-4. -
Integrated ultrasound and biochemical screening for trisomy 21 using fetal nuchal translucency, absent fetal nasal bone, free beta-hCG and PAPP-A at 11 to 14 weeks.
Cicero S, Bindra R, Rembouskos G, Spencer K, Nicolaides KH.
Prenat Diagn 2003;23:306-10. -
Nasal bone hypoplasia in trisomy 21 at 15-22 weeks' gestation.
Cicero S, Sonek JD, McKenna DS, Croom CS, Johnson L, Nicolaides KH.
Ultrasound Obstet Gynecol 2003;21:15-8.