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Maternal age and adverse pregnancy outcomes: a cohort study.
Khalil A, Syngelaki A, Maiz N, Zinevich Y, Nicolaides KH.
Ultrasound Obstet Gynecol 2013;42:634-43. pdf -
Maternal racial origin and adverse pregnancy outcome: a cohort study.
Khalil A, Rezende J, Akolekar R, Syngelaki A, Nicolaides KH.
Ultrasound Obstet Gynecol 2013;41:278-85. -
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.