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First-trimester maternal serum matrix metalloproteinase-9 (MMP-9) and adverse pregnancy outcome.
Poon LC, Nekrasova E, Anastassopoulos P, Livanos P, Nicolaides KH.
Prenat Diagn 2009;29:553-9. -
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.