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First trimester markers of trisomy 21 and the influence of maternal cigarette smoking status.
Spencer K, Ong CYT, Liao AWJ, Papademetriou D, Nicolaides KH.
Prenat Diagn 2000;20:852-3. -
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. -
The influence of fetal sex in screening for trisomy 21 by fetal nuchal translucency, maternal serum free beta-hCG and PAPP-A at 10-14 weeks of gestation.
Spencer K, Ong CY, Liao AW, Papademetriou D, Nicolaides KH.
Prenat Diagn 2000;20:673-5. -
First trimester nuchal translucency and cardiac septal defects in fetuses with trisomy 21.
Hyett JA, Moscoso G, Nicolaides KH.
Am J Obstet Gynecol 1995;172:1411-3. -
Increased nuchal translucency in Trisomy 21 fetuses: Relation to narrowing of the aortic isthmus.
Hyett JA, Moscoso G, Nicolaides KH.
Hum Reprod 1995;10:3049-3051.