Kucharczuk, M., K. M. Juraszek, S. Krajewski, M. Surman-Wika, and K. Tkaczyński. “The Assessment of the Patients Disability Degree Using the EDSS Scale in Various Forms of Multiple Sclerosis”. Journal of Education, Health and Sport, vol. 8, no. 3, Mar. 2018, pp. 278-92, https://apcz.umk.pl/JEHS/article/view/5354.