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First trimester urinary placental growth factor and development of pre-eclampsia.
Savvidou M, Akolekar R, Zaragoza E, Poon L, Nicolaides K.
BJOG 2009;116:643-7. -
First-trimester prediction of hypertensive disorders in pregnancy.
Poon LC, Kametas NA, Maiz N, Akolekar R, Nicolaides KH.
Hypertension 2009;53:812-8.