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Maternal Serum Placental Growth Factor, Pregnancy-Associated Plasma Protein-A and Free β-Human Chorionic Gonadotrophin at 30-33 Weeks in the Prediction of Pre-Eclampsia.
Lai J, Pinas A, Poon LC, Agathokleous M, Nicolaides KH.
Fetal Diagn Ther 2013;33:164-72.