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Routine first-trimester screening for fetal trisomies in twin pregnancy: cell-free DNA test contingent on results from combined test.
Galeva S, Konstantinidou L, Gil MM, Akolekar R, Nicolaides KH.
Ultrasound Obstet Gynecol 2019;53:208-213. pdf -
Cell-free DNA analysis for trisomy risk assessment in first-trimester twin pregnancies.
Gil MM, Quezada MS, Bregant B, Syngelaki A, Nicolaides KH.
Fetal Diagn Ther 2014;35:204-11. pdf -
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. -
Turning the pyramid of prenatal care.
Nicolaides KH.
Fetal Diagn Ther 2011;29:183-96.