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First-trimester screening for trisomies in pregnancies with vanishing twin.
Chaveeva P, Wright A, Syngelaki A, Konstantinidou L, Wright D, Nicolaides KH.
Ultrasound Obstet Gynecol 2020;55:326-331. pdf -
First-trimester screening for trisomies 21, 18 and 13 by ultrasound and biochemical testing.
Wright D, Syngelaki A, Bradbury I, Akolekar R, Nicolaides KH.
Fetal Diagn Ther 2014;35:118-26. pdf -
First-trimester contingent screening for trisomies 21, 18 and 13 by biomarkers and maternal blood cell-free DNA testing.
Nicolaides KH, Syngelaki A, Poon LC, Gil M, Wright D.
Fetal Diagn Ther 2014;35:185-92. pdf -
Screening for fetal aneuploidies at 11 to 13 weeks.
Nicolaides KH.
Prenat Diagn 2011;31:7-15. -
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. -
First-trimester maternal serum PAPP-A, SP1 and M-CSF levels in normal and trisomic twin pregnancies.
Bersinger NA, Noble P, Nicolaides KH.
Prenat Diagn 2003;23:157-62. -
First trimester maternal serum AFP and total hCG in aneuploidies other than trisomy 21.
Spencer K, Heath V, Flack N, Ong C, Nicolaides KH.
Prenat Diagn 2000;20:635-9. -
Maternal serum free beta-hCG at 10 to 14 weeks of gestation in trisomic twin pregnancies.
Noble PL, Snijders RJ, Abraha HD, Sherwood RA, Nicolaides KH.
BJOG 1997;104:741-3.