Salehiniya, H., S. Hassanipour, F. Mansour-Ghanaei, S. Mohseni, F. Joukar, E. Abdzadeh, M. Fathalipour, and M. Arab-Zozani. “The Incidence of Esophageal Cancer in Iran: A Systematic Review and Meta-Analysis”. Biomedical Research and Therapy, Vol. 5, no. 7, July 2018, pp. 2493-0, doi:10.15419/bmrat.v5i7.459.