[1] Natl Inst Neurosci, Dept Immunol, Kodaira, Tokyo 1878502, Japan
[2] NCNP, Natl Ctr Hosp Mental Nervous & Muscular Disorders, Kodaira, Tokyo 1878502, Japan
[3] Hokkaido Univ, Grad Sch Med, Dept Neurol, Kita Ku, Sapporo, Hokkaido 0608638, Japan
[4] Saitama Med Sch, Dept Neurol, Moroyama, Saitama 3500495, Japan
[5] Juntendo Univ, Sch Med, Dept Neurol, Bunkyo Ku, Tokyo 113841, Japan
[6] Tokyo Womens Med Coll, Dept Neurol, Tokyo 1628666, Japan
[7] Tokyo Med & Dent Univ, Dept Neurol, Bunkyo Ku, Tokyo 1138519, Japan
[8] Hokuyukai Neurol Hosp, Nishi Ku, Sapporo, Hokkaido 0630802, Japan