Mana Higashihara¹, Kenji Ishibashi², Hiroki Komatsu¹, Masanori Kurihara¹, Tomoyasu Matsubara³, Parvathi Menon⁴, Mehdi Van Den Bos⁴, Keiko Hatano¹, Ryoko Ihara¹, Yuko Saito³, Takayuki Kato⁵, Yasushi Nishina¹, Kazutomi Kanemaru¹, Masahiro Sonoo⁶, Shigeo Murayama³, Aya M Tokumaru⁷, Steve Vucic⁴, Kenji Ishii², Atsushi Iwata¹ (1.Department of Neurology, Tokyo Metropolitan Geriatric Hospital, Japan, 2.Research team for Neuroimaging, Tokyo Metropolitan Institute of Gerontology, Japan, 3.The brain bank for aging research, Tokyo Metropolitan Institute of Gerontology, Japan, 4.Brain and Nerve Research Center, Concord Clinical School, University of Sydney, Australia, 5.Department of Rehabilitation medicine, Tokyo Metropolitan Geriatric Hospital, Japan, 6.Department of Neurology, Teikyo University school of medicine, Japan, 7.Department of Radiology, Tokyo Metropolitan Geriatric Hospital, Japan)

Moeko Ogushi, Kazumoto Shibuya, Marie Morooka, Ryou Otani, Tomoki Suichi, Hiroki Kano, Yuuya Aotsuka, Sonoko Misawa, Satoshi Kuwabara (Department of Neurology, Graduate School of Medicine, Chiba University Chiba, Japan)

Hideki Kimura^1,5, Takashi Onohara^2,5, Yuki Sakamoto^3,5, Kosuke Akari^4,5, Toshio Shimizu¹, Kazushi Takahashi¹ (1.Division of neurology, Tokyo Metropolitan Neurological Hospital, Japan, 2.Division of nursing, Tokyo Metropolitan Neurological Hospital, Japan, 3.Division of rehabilitation, Tokyo Metropolitan Neurological Hospital, Japan, 4.Division of anesthesiology, Tokyo Metropolitan Neurological Hospital, Japan, 5.Respiratory support team, Tokyo Metropolitan Neurological Hospital, Japan)

Yutaka Nishiyama, Jun Tokunaga, Masaki Tougou, Takaya Numayama (Sayama Neurological Hospital, Japan)

Chikashi Yano, Tomonori Nakamura, Ryusei Nagata, Satoshi Ohyama, Yujiro Higuchi, Mika Yuji, Akihiro Hashiguchi, Eiji Matsuura, Hiroshi Takashima (Department of Neurology, Kagoshima University Hospital, Japan)

Motoharu Kawai, Shiori Takahashi, Yukari Tanioka, Hideki Kinoshita (Neuromuscular Center Yoshimizu Hospital, Japan)