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Maternal thyroid function at gestational weeks 11-13 in twin pregnancies.
Ashoor G, Muto O, Poon LC, Muhaisen M, Nicolaides KH.
Thyroid 2013;23:1165-71. -
Maternal serum activin-A at 30-33 weeks in the prediction of preeclampsia.
Lai J, Pinas A, Syngelaki A, Poon LC, Nicolaides KH.
J Matern Fetal Neonatal Med 2013;26:733-7.