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Morphometric analysis of the great vessels in early fetal life.
Hyett JA, Moscoso G, Nicolaides KH.
Hum Reprod 1995;10:3045-8. -
Maternal serum hCG and fetal nuchal translucency thickness for the prediction of fetal trisomies in the first trimester of pregnancy.
Brizot ML, Snijders RJ, Butler J, Bersinger NA, Nicolaides KH.
Br J Obstet Gynaecol 1995;102:127-32.