Salehiniya, Hamid, Soheil Hassanipour, Fariborz Mansour-Ghanaei, Shokrollah Mohseni, Farahnaz Joukar, Elham Abdzadeh, Mohammad Fathalipour, and Morteza Arab-Zozani. “The Incidence of Esophageal Cancer in Iran: A Systematic Review and Meta-Analysis”. Biomedical Research and Therapy 5, no. 7 (July 27, 2018): 2493-2503. Accessed May 18, 2024. http://home.biomedpress.org/index.php/BMRAT/article/view/459.