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Nuchal translucency thickness and crown-rump length in twin pregnancies with chromosomally abnormal fetuses.
Pandya PP, Hilbert F, Snijders RJM, Nicolaides KH.
J Ultrasound Med 1995;14:565-8. -
Morphometric analysis of the great vessels in early fetal life.
Hyett JA, Moscoso G, Nicolaides KH.
Hum Reprod 1995;10:3045-8.