1Department of Neurology, Keio University School of Medicine, Tokyo, Japan
2Department of Neurology, Tokyo Medical University, Tokyo, Japan
3Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
4Department of Neurology, Hanamaki General Hospital, Hanamaki, Japan
5Department of Neurology, Toho University Ohashi Medical Center, Tokyo, Japan
6Department of Neurology, National Hospital Organization Sendai Medical Center, Sendai, Japan
7Department of Clinical Laboratory and Biomedical Sciences, Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
8Department of Clinical Neuroscience and Therapeutics, Hiroshima University, Hiroshima, Japan
9Department of Neurology, Kindai University Faculty of Medicine, Sayama, Japan
10Department of Neurology, Hyogo Medical University, Nishinomiya, Japan
11Department of Neurology, National Hospital Organization Hokkaido Medical Center, Sapporo, Japan
12Department of Neurology, Neurology Chiba Clinic, Chiba, Japan
13Department of Neurology, International University of Health and Welfare, Narita, Japan