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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. -
Fetal cells in maternal blood of pregnancies with severe fetal growth restriction.
Al-Mufti R, Lees C, Albaiges G, Hambley H, Nicolaides KH.
Hum Reprod 2000;15:218-21.