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Body Mass Index at 11-13 Weeks' Gestation and Pregnancy Complications.
Syngelaki A, Bredaki FE, Vaikousi E, Maiz N, Nicolaides KH.
Fetal Diagn Ther 2011;30:250-65. -
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.