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Metabolomic analysis for first-trimester trisomy 18 detection.
Bahado-Singh RO, Akolekar R, Chelliah A, Mandal R, Dong E, Kruger M, Wishart DS, Nicolaides KH.
Am J Obstet Gynecol 2013;209:65. pdf -
Maternal serum vitamin D at 11-13 weeks in pregnancies delivering small for gestational age neonates.
Ertl R, Yu CK, Samaha R, Akolekar R, Nicolaides KH.
Fetal Diagn Ther 2012;31:103-8.