-
The mitral gap at 11 + 0 to 13 + 6 weeks: marker of trisomy 21 or artifact?
Maiz N, Dagklis T, Huggon I, Allan L, Nicolaides KH.
Ultrasound Obstet Gynecol 2007;30:813-8. -
Umbilical cord diameter at 11-14 weeks of gestation: relation to chromosomal defects.
Rembouskos G, Cicero S, Papadopoulos V, Tripsanas C, Nicolaides KH.
Ultrasound Obstet Gynecol 2004;23:237-9. -
First trimester umbilical venous Doppler sonography in chromosomally normal and abnormal fetuses.
Brown RN, Di Luzio L, Gomes C, Nicolaides KH.
J Ultrasound Med 1999;18:543-6.