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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. -
Low levels of maternal serum PAPP-A in the first trimester and the risk of pre-eclampsia.
Spencer K, Cowans NJ, Nicolaides KH.
Prenat Diagn 2008;28:7-10. -
Prediction of pregnancy complications by first-trimester maternal serum PAPP-A and free beta-hCG and with second-trimester uterine artery Doppler.
Spencer K, Yu CK, Cowans NJ, Otigbah C, Nicolaides KH.
Prenat Diagn 2005;25:949-53. -
First trimester maternal serum free beta human chorionic gonadotrophin and pregnancy associated plasma protein A as predictors of pregnancy complications.
Ong CY, Liao AW, Spencer K, Munim S, Nicolaides KH.
BJOG 2000;107:1265-70.