1. Tan-Kristanto S, Kiropoulos LA. Resilience, self-efficacy, coping styles and depressive and anxiety symptoms in those newly diagnosed with multiple sclerosis. Psychol Health Med. 2015;20(6):635–45.
2. Pietrangelo A, Higuera V. Multiple sclerosis by the numbers: facts, statistics, and you [cited 2020.01.14]. Available from: https://www.healthline.com/health/multiple-sclerosis/facts-statistics-infographic#1.
3. Saman-Nezhad B, Rezaee T, Bostani A, Najafi F, Aghaei A. Epidemiological characteristics of patients with multiple sclerosis in Kermanshah, Iran in 2012. J Mazandaran Univ Med Sci. 2013;23(104):97–101.
4. Ayazi M. 90,000 Iranians get cancer every year 2016 [cited 2020.01.14]. Available from: https://www.isna.ir/news/94071106531/%D8%A7%D8%A8%D8%AA%D9%84%D8%A7%DB%8C-%D8%B3%D8%A7%D9%84%D8%A7%D9%86%D9%87-90-%D9%87%D8%B2%D8%A7%D8%B1-%D8%A7%DB%8C%D8%B1%D8%A7%D9%86%DB%8C-%D8%A8%D9%87-%D8%B3%D8%B1%D8%B7%D8%A7%D9%86.
5. Dehghani R, KazemiMoghaddam V. Potential causes of the in creased prevalence of multiple sclerosis in Iran: a review study. Pars J Med Sci. 2015;13(2):17–25.