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First-trimester biochemical markers of aneuploidy and the prediction of small-for-gestational age fetuses.
Spencer K, Cowans NJ, Avgidou K, Molina F, Nicolaides KH.
Ultrasound Obstet Gynecol 2008;31:15-9. -
Screening for adverse pregnancy outcome by ductus venosus Doppler at 11-13+6 weeks of gestation.
Maiz N, Valencia C, Emmanuel EE, Staboulidou I, Nicolaides KH.
Obstet Gynecol 2008;112:598-605.