Maha Shomaf, AL-Motassem Yousef, Nidaa Ababna, and Yahya Bobali, “Cyclooxygenase-2 (COX2) gene polymorphisms and the risk of sporadic colorectal cancer and polyps among Jordanian population”, Turkish Journal of Gastroenterology, vol. 26, no. 2, pp. 154–158, Jul. 2019.