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Screening for trisomy 18 by maternal age, fetal nuchal translucency, free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A.
Kagan KO, Wright D, Maiz N, Pandeva I, Nicolaides KH.
Ultrasound Obstet Gynecol 2008;32:488-92. -
Screening for trisomy 18 by fetal nuchal translucency and maternal serum free beta -hCG and PAPP-A at 10-14 weeks of gestation.
Tul N, Spencer K, Noble P, Chan C, Nicolaides K.
Prenat Diagn 1999;19:1035-42. -
The maternal insulin-like growth factor (IGF) and IGF binding protein response to trisomic pregnancy during the first trimester: a possible diagnostic tool for trisomy 18 pregnancies.
Miell JP, Langford KS, Jones JS, Noble P, Westwood m, White A, Nicolaides KH.
J Clin Endocrinol Metab 1997;82:287-92. -
Perinatal features associated with placental mesenchymal dysplasia.
Jauniaux E, Nicolaides KH, Hustin J.
Placenta 1997;18:701-6.