1. Department of Clinical Neuroscience and Therapeutics, Graduate School of Biomedical and Health Sciences, Hiroshima University: 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan
2. Division of Rehabilitation, Department of Clinical Practice and Support, Hiroshima University Hospital, Japan
3. Department of Neurology, National Hospital Organization Kure Medical Center, Japan
4. Department of Rehabilitation Medicine, Hiroshima University Hospital, Japan