-
A model for a new pyramid of prenatal care based on the 11 to 13 weeks' assessment.
Nicolaides KH.
Prenat Diagn 2011;31:3-6. -
Screening for triploidy by fetal nuchal translucency and maternal serum free beta-hCG and PAPP-A at 10-14 weeks of gestation.
Spencer K, Liao AW, Skentou H, Cicero S, Nicolaides KH.
Prenat Diagn 2000;20:495-9.