1 Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
2 Department of Neurology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan yaguchi-h@pop.med.hokudai.ac.jp yabe@med.hokudai.ac.jp.
3 Department of Neurology, Mie University Hospital, Tsu, Japan.
4 Division of Neurology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan.
5 Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
6 Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, Japan.
7 Department of Biochemistry, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
8 Department of Molecular Biology, Yokohama City University School of Medicine Graduate School of Medicine, Yokohama, Japan.
9 Department of Neurology, Gifu University Graduate School of Medicine, Gifu, Japan.