^○Teruyuki Ishikura, Tomohito Nakano, Noyuri Takenaka, Nozomi Nagashima, Naohiro Fujita, Akira Nishikawa, Hisae Sumi, Takashi Naka (Higashiosaka City Medical Center, Department of Neurology, Japan)

^○Katsunori Takahata, Takahiro Hobara, Mika Dozono, Satoshi Ohyama, Yusuke Sakiyama, Eiji Matsuura, Hiroshi Takashima (Department of Neurology and Genetics, Kagoshima University Graduate School of Medical and Dental Sciences, Japan)

^○Eiji Matsuura¹, Satoshi Nozuma¹, Keiko Higashi¹, Masakazu Tanaka², Ryuji Kubota², Hiroshi Takashima¹ (1.Department of Neurology and Geriatrics, Kagoshima University, Japan, 2.Joint Research Center for Human Retrovirus Infection, Kagoshima University)

^○Shutaro Shibata, Junji Komatsu, Kenjiro Ono (Department of Neurology and Neurobiology of Aging, Kanazawa University Graduate School of Medical Sciences, Japan)

^○Kenji Isahaya¹, Soichiro Shibata¹, Naoki Iizima¹, Tsuneaki Hirakawa², Ayumu Ito³, Nao Nishimura⁴, Takahiro Hukuda³, Ryo Sasaki⁵, Nobuharu Hujii⁶, Tomoo Sato^1,7, Yoshihisa Yamano^1,7 (1.Department of Internal Medicine, Division of Neurology St. Marianna University School of Medicine, Japan, 2.Department of Internal Medicine, Division of Hematology, St. Marianna University School of Medicine, 3.Department of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan., 4.Department of Hematology, Rheumatology, and Infectious Diseases, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan., 5.Department of Neurology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University,, 6.Department of Hematology and Oncology, Okayama University Hospital, 7.Department of Rare Diseases Research, Institute of Medical Science, St. Marianna University School of Medicine)

^○Keiichi Mizushima¹, Shinichi Shirai¹, Ikuko Iwata¹, Masaaki Matsushima¹, Hiroaki Yaguchi¹, Ai Shimizu², Ichiro Yabe¹ (1.Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Japan, 2.Department of Surgical Pathology, Hokkaido University Hospital)