Ai Hosaka^1,2, Naomi Mamada^1,2, Yasuro Shibagaki¹ (1.Hitachi, Ltd., Hitachinaka General Hospital, 2.Hitachinaka Medical Education and Research Center, University of Tsukuba Hospital)

Heisuke Mizukami, Futaba Maki, Satoru Kashima, Masashi Hoshino, Saki Nukui, Masato Yamatoku, Kenji Isahaya, Makoto Shiraishi, Yasuhiro Hasegawa (Department of Internal Medicine, Division of Neurology St. Marianna University School of Medicine)

Junji Ikeda¹, Masahiro Biyajima¹, Tsuneaki Yoshinaga¹, Katsuya Nakamura¹, Daigo Miyazaki¹, Tomomi Yamaguchi², Megumi Nobuoka³, Jun Tsuyusaki⁴, Mitsunori Yamada⁵, Yoshiki Sekijima¹ (1.Department of Medicine(Neurology & Rheumatology),Shinshu University School of Medicine, 2.Center for Medical Genetics,Shinshu University Hospital, 3.Department of Laboratory Medicine,Shinshu University Hospital, 4.Department of Neurology ,Asama Nanroku Komoro Medical Center, 5.Department of Brain Disease Research,Shinshu University School of Medicine)

Tadashi Tsukamoto, Yuji Takahashi (Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry)

Sachiko Hoshino (Division of Neurology, Department of Internal Medicine, Tsukuba Memorial Hospital)

Maki Takahashi¹, Atsuo Nakahara¹, Tadashi Umehara², Hitomi Higa¹, Takuya Ishii³, Hisayoshi Oka¹ (1.Department of Neurology, Daisan Hospital, The Jikei University School of Medicine, 2.Department of Neurology, The Jikei University School of Medicine, 3.Department of Neurosurgery, Daisan Hospital, The Jikei University School of Medicine)