Settin, Ahmad, Ibrahem S Abu-Saif, Rizk El-Baz, Moataz Dowaidar, Rabab Abu-Al Kasim, and Shaimaa Shabana. “Diagnosis of Sex Chromosome Disorders and Prenatal Diagnosis of Down Syndrome Using”. International Journal of Health Sciences 1, no. 2 (July 1, 2007). Accessed November 22, 2024. https://pub.qu.edu.sa/index.php/journal/article/view/84.