[1] Fed State Scientifically Inst, Inst Hlth, Novosibirsk, Russia
[2] North Eastern Fed Univ, Lab Genet Res, Yakutsk, Russia
[3] North Eastern Fed Univ, Clin Diagnost Lab, Yakutsk, Russia
[4] North Eastern Fed Univ, Dept Viliuisk Encephalomyelitis Invest, Yakutsk, Russia
[5] North Eastern Fed Univ, Hosp Inst Hlth, Yakutsk, Russia
[6] North Eastern Fed Univ, Hosp Inst Hlth, Yakutsk, Russia
[7] North Eastern Fed Univ, Med Inst, Yakutsk, Russia
[8] Ctr Multiple Sclerosis Republ Sakha, Yakutia, Russia
[9] Republ Hosp 2, Neurol Dept, Kazan, Russia