^○Takehiro Yamada, Eijirou Tanaka, Yuta Kojima, Daisuke Nakashima, Takamasa Kitaoji, Yoshinari Nagakane (Department of Neurology, Kyoto Second Red Cross Hospital, Kyoto, Japan)

^○Hisanao Akiyama, Yoko Tsuchihashi, Saki Nukui, Takashi Araga, Yasuhiro Hasegawa (Department of Neurology, St. Marianna University School of Medicine)

^○Keiko Takahashi¹, Hiromasa Tsuda^1,2, Kozue Tanaka² (1.Department of Neurology, Tokyo Metropolitan Health and Medical Corporation Toshima Hospital, 2.Department of Neurology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital)

^○Noriko Nara¹, Tomoki Nakamizo¹, Eriko Sugawara¹, Yosuke Kudo¹, Yu Amano¹, Kosuke Watanabe¹, Hideyuki Kikyo¹, Chiharu Kugimoto¹, Masahiro Yamamoto¹, Kazumitsu Amari^1,2, Ken Johkura¹ (1.Department of neurology, Yokohama Brain and Spine Center, 2.Department of Neuroendovascular Therapy, Yokohama Brain and Spine Center)

^○Mizuki Ayano^1,2, Shiori Ebisawa^1,3, Hiroyuki Kawano^1,4, Yoshiaki Shiokawa^1,5, Chiba Atsuro^1,2, Teruyuki Hirano^1,4 (1.Department of Stroke Center, Kyorin University, 2.Department of Neurology, Kyorin University, 3.Nursing department, Kyorin University, Japan, 4.Department of Stroke and Cerebrovascular Medicine, Kyorin University, 5.Department of Neurosurgery, Kyorin University)

^○Koichi Oki¹, Masahiro Katsumata¹, Yoshikane Izawa¹, Takahashi Shinichi¹, Norihiro Suzuki¹, Kiyohiro Houkin², Research Committee on Spontaneous Occlusion of Circle of Willis (Moyamoya Disease) (1.Department of Neurology, Keio University School of Medicine, 2.Department of Neurosurgery, Hokkaido University Graduate School of Medicine)