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Effect of chorionic villus sampling on uterine artery Doppler.
Khalil A, Akolekar R, Syngelaki A, Penco JM, Nicolaides KH.
Fetal Diagn Ther 2010;28:9-13. -
Chorionic villus sampling at 11 to 13 weeks of gestation and hypertensive disorders in pregnancy.
Khalil A, Akolekar R, Pandya P, Syngelaki A, Nicolaides K.
Obstet Gynecol 2010;116:374-80.