For citations:
Svetlichnaya A.V., Vyazovichenko Yu.E., Torchinskiy N.I., Korshunov V.A. Incidence of multiple sclerosis and prevalence of its risk factors in Russian Federation. Fundamental and Clinical Medicine. 2021;6(4):98-105. (In Russ.) https://doi.org/10.23946/2500-0764-2021-6-4-98-105