-
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. -
Hypertensive disorders in pregnancy: screening by biophysical and biochemical markers at 11-13 weeks.
Poon LC, Akolekar R, Lachmann R, Beta J, Nicolaides KH.
Ultrasound Obstet Gynecol 2010;35:662-70.