Kamble, V., T. Bhatia, and S. Patil. “Cystic Hygroma With Hydrops Fetalis: A Rare Case Report”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 3, no. 3, Jan. 2017, pp. 847-50, https://www.ijrcog.org/index.php/ijrcog/article/view/1163.