[1] Juntendo Univ, Dept Neurol, Sch Med, Tokyo, Japan
[2] Juntendo Univ, Res Inst Dis Old Age, Grad Sch Med, Tokyo, Japan
[3] Juntendo Tokyo Koto Geriatr Med Ctr, Dept Neurol, Tokyo, Japan
[4] Juntendo Univ, Dept Neurol, Koshigaya Hosp, Saitama, Japan
[5] Fukushima Med Univ, Dept Neurol, Fukushima, Japan
[6] Wakayama Med Univ, Dept Neurol, Wakayama, Wakayama Prefec, Japan
[7] Int Univ Hlth & Welf, Sch Med, Off Med Educ, Chiba, Japan
[8] Honmachi Neurol Clin, Nagoya, Aichi, Japan
[9] Univ Yamanashi, Dept Neurol, Yamanashi, Japan
[10] Natl Hosp Org Asahikawa Med Ctr, Dept Neurol, Asahikawa, Hokkaido, Japan
[11] Tokyo Med Univ, Dept Neurol, Tokyo, Japan
[12] St Marys Hosp, Div Neurol, Fukuoka, Japan
[13] Kyushu Univ, Neurol Inst, Grad Sch Med Sci, Dept Neurol, Fukuoka, Japan
[14] Shinshu Univ, Dept Med Neurol & Rheumatol, Sch Med, Matsumoto, Nagano, Japan
[15] Jikei Univ, Dept Neurol, Katsushika Med Ctr, Tokyo, Japan
[16] Dokkyo Med Univ, Dept Neurol, Mibu, Tochigi, Japan
[17] Kansai Med Univ, Dept Neurol, Osaka, Japan
[18] Yokohama City Univ, Dept Neurol & Stroke Med, Grad Sch Med, Yokohama, Kanagawa, Japan
[19] Kagoshima Univ, Dept Neurol & Geriatr, Grad Sch Med & Dent Sci, Kagoshima, Japan
[20] Sasebo City Gen Hosp, Dept Neurol, Nagasaki, Japan
[21] Nagara Clin, Fukuoka, Japan
[22] Okayama Kyokuto Hosp, Dept Neurol, Okayama, Japan
[23] Osaka Univ, Grad Sch Med, Dept RNA Biol & Neurosci, Osaka, Japan
[24] Junwakai Mem Hosp, Brain & Nerve Ctr, Miyazaki, Japan
[25] Saga Univ, Div Neurol, Dept Internal Med, Fac Med, Saga, Japan
[26] Nitobe Mem Nakano Gen Hosp, Dept Neurol, Tokyo, Japan
[27] Natl Hosp Org Nara Med Ctr, Dept Neurol, Nara, Japan
[28] Univ Tsukuba, Div Clin Med, Dept Neurol, Fac Med, Ibaraki, Japan
[29] Kagawa Prefectural Cent Hosp, Dept Neurol, Takamatsu, Kagawa, Japan
[30] Fujita Hlth Univ, Bantane Hosp, Dept Neurol, Toyoake, Aichi, Japan