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Screening at 11-13+6 weeks' gestation.
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Ceska Gynekol 2012;77:92-104. -
Screening for fetal aneuploidies at 11 to 13 weeks.
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Prenat Diagn 2011;31:7-15. -
Ductus venosus Doppler in fetuses with cardiac defects and increased nuchal translucency thickness.
Maiz N, Plasencia W, Dagklis T, Faros E, Nicolaides K.
Ultrasound Obstet Gynecol 2008;31:256-60.