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Maternal serum progesterone-induced blocking factor at 11-13 weeks gestation in spontaneous early preterm delivery.
Beta J, Szekeres-Bartho J, Skyfta E, Akolekar R, Nicolaides KH.
Fetal Diagn Ther 2011;29:197-200. -
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.