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Morphological classification of nuchal skin in human fetuses with trisomy 21, 18, and 13 at 12-18 weeks and in a trisomy 16 mouse.
von Kaisenberg CS, Krenn V, Ludwig M, Nicolaides KH, Brand-Saberi B.
Anat Embryol 1998;197:105-24. -
Screening for fetal abnormalities in multiple pregnancies.
Sebire NJ, Nicolaides KH.
Baillieres Clin Obstet Gynaecol 1998;12:19-36.