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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. -
A screening program for trisomy 21 at 10-14 weeks using fetal nuchal translucency, maternal serum free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A.
Spencer K, Souter V, Tul N, Snijders R, Nicolaides KH.
Ultrasound Obstet Gynecol 1999;13:231-7. -
Total amount of circulating human chorionic gonadotrophin alpha and beta subunits in first trimester trisomies 21 and 18.
Jauniaux E, Nicolaides KH, Nagy AM, Brizot M, Meuris S.
J Endocrinol 1996;148:27-31. -
Gene expression of human pregnancy-associated plasma protein-A in placenta from trisomic pregnancies.
Brizot ML, Hyett JA, Mckie AT, Bersinger NA, Farzaneh F, Nicolaides KH.
Placenta 1996;17:33-6. -
Maternal serum concentrations of pregnancy associated plasma protein A and pregnancy specific B-1 glycoprotein in multifetal pregnancies before and after fetal reduction.
Abbas A, Sebire NJ, Johnson M, Bersinger N, Nicolaides KH.
Hum Reprod 1996;11,900-2.