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Prediction of spontaneous preterm delivery from maternal factors, obstetric history and placental perfusion and function at 11-13 weeks.
Beta J, Akolekar R, Ventura W, Syngelaki A, Nicolaides KH.
Prenat Diagn 2011;31:75-83. -
First-trimester ultrasound and biochemical markers of aneuploidy and the prediction of impending fetal death.
Spencer K, Cowans NJ, Avgidou K, Nicolaides KH.
Ultrasound Obstet Gynecol 2006;28:637-43.