1) Noseworthy JH, Lucchinetti C, Rodriguez M, et al:Multiple sclerosis. N Engl J Med 2000;343:938-52 2) 王子聡,野村恭一:ステロイド・パルス療法と血液浄化療法の適応.日本臨床2008;66:1127-32 3) Weiner HL, Dau PC, Khatri BO, et al:Double-blind study of true vs. sham plasma exchange in patients treated with immunosuppression for acute attacks of multiple sclerosis. Neurology 1989;39:1143-49 4) Weinshenker BG, O'Brien PC, Petterson TM, et al:A randomized trial of plasma exchange in acute central nervous system inflammatory demyelinating disease. Ann Neurol 1999;46:878-86 5) Keegan M, Pineda AA, McClelland RL, et al:Plasma exchange for severe attacks of CNS demyelination:predictors of response. Neurology 2002;58:143-6 6) Heigl F, Hettich R, Arendt R, et al:Immunoadsorption in steroid refractory multiple sclerosis:clinical experience in 60 patients. Atheroscler Suppl 2013;14:167-73 7) Schimrigk S, Faiss J, Köhler W, et al:Escalation therapy of steroid refractory multiple sclerosis relapse with tryptophan immunoadsorption-observational multicenter study with 147 patients. Eur Neurol 2016;75:300-6 8) The Canadian Cooperative Multiple Sclerosis Study Group:The Canadian cooperative trial of cyclophosphamide and plasma exchange in progressive multiple sclerosis. Lancet 1991;337:441-6 9) Cortese I, Chaudhry V, So YT, et al:Evidence-based guideline update:plasmapheresis in neurologic disorders:report of the Therapeutics and Technology Assessment Subcommittee of the American Academy of Neurology. Neurology 2011;76:294-300 10) Vamvakas EC, Pineda AA, Weinshenker BG:Meta-analysis of clinical studies of the efficacy of plasma exchange in the treatment of chronic progressive multiple sclerosis. J Clin Apher 1995;10:163-70