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Maternal serum alpha-fetoprotein at 12, 22 and 32 weeks' gestation in screening for pre-eclampsia.
Bredaki FE, Mataliotakis M, Wright A, Wright D, Nicolaides KH.
Ultrasound Obstet Gynecol 2016;47:466-71. pdf -
Serum alpha-fetoprotein in the three trimesters of pregnancy: effects of maternal characteristics and medical history.
Bredaki FE, Sciorio C, Wright A, Wright D, Nicolaides KH.
Ultrasound Obstet Gynecol 2015;46:34-41. pdf