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Maternal thyroid function at 11-13 weeks of gestation and spontaneous preterm delivery.
Ashoor G, Maiz N, Rotas M, Jawdat F, Nicolaides KH.
Obstet Gynecol 2011;117:293-8. -
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.