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From nuchal translucency to intracranial translucency: towards the early detection of spina bifida.
Chaoui R, Nicolaides KH.
Ultrasound Obstet Gynecol 2010;35:133-8. -
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.