^○Yosuke Miyaji^1,2, Masahiro Sonoo², Fumiaki Tanaka¹ (1.Department of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine, Japan, 2.Department of Neurology, Teikyo University School of Medicine, Japan)

^○Kota Bokuda, Toshio Shimizu (Department of Neurology, Tokyo Metropolitan Neurological Hospital, Japan)

^○Yuichiro Shirota (Department of Clinical Laboratory, the University of Tokyo Hospital, Japan)

^○Takahiro Shimizu (Division of Neurology, Department of Brain and Neurosciences, Faculty of Medicine, Tottori University, Japan)