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Placental volume measured by three-dimensional ultrasound at 11 to 13 + 6 weeks of gestation: relation to chromosomal defects.
Wegrzyn P, Faro C, Falcon O, Peralta CF, Nicolaides KH.
Ultrasound Obstet Gynecol 2005;26:28-32. -
Fetal nuchal translucency thickness at 10-14 weeks gestation and congenital diaphragmatic hernia.
Sebire NJ, Snijders RJ, Davenport M, Greenough A, Nicolaides KH.
Obstet Gynecol 1997;90:943-6.