Di Gregorio, Dibe Marie, et al. “First Trimester Cystic Hygroma: Herald to Early Diagnosis of Congenital Diaphragmatic Hernia”. Puerto Rico Health Sciences Journal, vol. 40, no. 1, Mar. 2021, pp. 53-55, https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/2163.