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First-trimester maternal serum levels of placenta growth factor as predictor of preeclampsia and fetal growth restriction.
Ong CY, Liao AW, Cacho AM, Spencer K, Nicolaides KH.
Obstet Gynecol 2001;98:608-11. -
Screening for pre-eclampsia and fetal growth restriction by uterine artery Doppler at 11-14 weeks of gestation.
Martin AM, Bindra R, Curcio P, Cicero S, Nicolaides KH.
Ultrasound Obstet Gynecol 2001;18:583-6.