1. Department of Neurology, Kawasaki Medical School, Japan
2. Department of Pediatrics, Hamamatsu University School of Medicine, Japan
3. Department of Pathology, Kawasaki Medical School, Japan
4. Department of Natural Science, Kawasaki Medical School, Japan
5. Faculty of Health and Medical Science, Tokoha University, Japan
6. Department of Neuromuscular Research, National Institute of Neuroscience (NCNP), Japan