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Prediction of early, intermediate and late pre-eclampsia from maternal factors, biophysical and biochemical markers at 11-13 weeks.
Akolekar R, Syngelaki A, Sarquis R, Zvanca M, Nicolaides KH.
Prenat Diagn 2011;31:66-74. -
Tricuspid regurgitation in screening for trisomies 21, 18 and 13 and Turner syndrome at 11 + 0 to 13 + 6 weeks of gestation.
Kagan KO, Valencia C, Livanos P, Wright D, Nicolaides KH.
Ultrasound Obstet Gynecol 2009;33:18-22.