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C-reactive protein at 11-13 weeks' gestation in spontaneous early preterm delivery.
Bakalis SP, Poon LC, Vayna AM, Pafilis I, Nicolaides KH.
J Matern Fetal Neonatal Med 2012;25:2475-8. -
First-trimester maternal serum tumor necrosis factor receptor-1 and pre-eclampsia.
Leal AM, Poon LC, Frisova V, Veduta A, Nicolaides KH.
Ultrasound Obstet Gynecol 2009;33:135-41.