-
A model for a new pyramid of prenatal care based on the 11 to 13 weeks' assessment.
Nicolaides KH.
Prenat Diagn 2011;31:3-6 pdf -
Fetal nasal bone in screening for trisomies 21, 18 and 13 and Turner syndrome at 11-13 weeks of gestation.
Kagan KO, Cicero S, Staboulidou I, Wright D, Nicolaides KH.
Ultrasound Obstet Gynecol 2009;33:259-64 pdf