Abbas, Israa Saeed. “Interleukin-8 251- A/T Polymorphism Related to Peptic Ulcer Disease in H. Pylori Infected Patient”. Journal of Contemporary Medical Sciences 2, no. 8 (December 23, 2016): 138–140. Accessed April 20, 2024. https://www.jocms.org/index.php/jcms/article/view/101.