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Maternal Serum Placental Growth Factor (PlGF) Isoforms 1 and 2 at 11-13 Weeks' Gestation in Normal and Pathological Pregnancies.
Nucci M, Poon LC, Demirdjian G, Darbouret B, Nicolaides KH.
Fetal Diagn Ther 2014;36:106-16.. 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. -
Maternal serum placental protein 13 at eleven to thirteen weeks in chromosomally abnormal pregnancies.
Akolekar R, Pérez Penco JM, Skyfta E, Rodríguez Calvo J, Nicolaides KH.
Fetal Diagn Ther 2010;27:72-7.