-
Competing risks model in early screening for preeclampsia by biophysical and biochemical markers.
Akolekar R, Syngelaki A, Poon L, Wright D, Nicolaides KH.
Fetal Diagn Ther 2013;33:8-15. -
Meta-analysis of second-trimester markers for trisomy 21.
Agathokleous M, Chaveeva P, Poon LC, Kosinski P, Nicolaides KH.
Ultrasound Obstet Gynecol 2013;41:247-61.