Anzhel, Simona, Emil Kovachev, Zhivko Zhekov, and Boyan Georgiev. “Increased Nuchal Translucency in Fetuses With Normal Karyotype”. Open Access Macedonian Journal of Medical Sciences 12, no. 1 (February 10, 2024): 83–87. Accessed May 16, 2024. https://oamjms.eu/index.php/mjms/article/view/11790.