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Fetal heart defects: potential and pitfalls of first-trimester detection.
Khalil A, Nicolaides KH.
Neonatal Med 2013;18:251-60. pdf -
Nuchal translucency and the risk of congenital heart disease.
Hyett J, Sonek J, Nicolaides KH.
Obstet Gynecol 2007;109:1455-6.