Hyett, J., Perdu, M., Sharland, G., Snijders, R., & Nicolaides, K. H. (1999). Using fetal nuchal translucency to screen for major congenital cardiac defects at 10-14 weeks of gestation: Population based cohort study. British Medical Journal.

Hyett, Jon, Marc Perdu, Gurleen Sharland, Rosalinde Snijders, and Kypros H. Nicolaides. Using Fetal Nuchal Translucency to Screen for Major Congenital Cardiac Defects At 10-14 Weeks of Gestation: Population Based Cohort Study. British Medical Journal, 1999.

Hyett, Jon, et al. Using Fetal Nuchal Translucency to Screen for Major Congenital Cardiac Defects At 10-14 Weeks of Gestation: Population Based Cohort Study. British Medical Journal, 1999.