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Second-trimester uterine artery Doppler screening in unselected populations: a review.
Papageorghiou AT, Yu CK, Cicero S, Bower S, Nicolaides KH.
J Matern Fetal Neonatal Med 2002;12:78-88. -
Vasoactive mediator release by fetal endothelial cells in intrauterine growth restriction and preeclampsia.
Parra MC, Lees C, Mann GE, Pearson JD, Nicolaides KH.
Am J Obstet Gynecol 2001;184:497-502.