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First trimester aneuploidy screening in the presence of a vanishing twin: implications for maternal serum markers.
Spencer K, Staboulidou I, Nicolaides KH.
Prenat Diagn 2010;30:235-40. -
Ductus venosus in the first trimester: contribution to screening of chromosomal, cardiac defects and monochorionic twin complications.
Maiz N, Nicolaides KH.
Fetal Diagn Ther 2010;28:65-71. -
Ductus venosus Doppler at 11 to 13 weeks of gestation in the prediction of outcome in twin pregnancies.
Maiz N, Staboulidou I, Leal AM, Minekawa R, Nicolaides KH.
Obstet Gynecol 2009;113:860-5. -
Sonographic measurement of cervical length in twin pregnancies in threatened preterm labor.
Fuchs I, Tsoi E, Henrich W, Dudenhausen JW, Nicolaides KH.
Ultrasound Obstet Gynecol 2004;23:42-5. -
First trimester prenatal diagnosis of trisomy 21 in discordant twins using fetal nuchal translucency thickness and maternal serum free beta-hCG and PAPP-A.
Spencer K, Nicolaides KH.
Prenat Diagn 2000;20:683-4.