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Collagen type VI gene expression in the skin of trisomy 21 fetuses.
von Kaisenberg CS, Brand-Saberi B, Christ B, Vallian S, Farzaneh F, Nicolaides KH.
Obstet Gynecol 1998;91:319-23. -
UK multicentre project on assessment of risk of trisomy 21 by maternal age and fetal nuchal-translucency thickness at 10-14 weeks of gestation.
Snijders RJ, Noble P, Sebire N, Souka A, Nicolaides KH.
Lancet 1998;352:343-6.