1. Department of Clinical Medical Sciences, Rehabilitation Medicine, International University of Health and Welfare Graduate School of Medicine, Narita, Japan
2. Department of Neurology and Intractable Neurological Disease Center, International University of Health and Welfare Ichikawa Hospital, Ichikawa, Japan
3. Department of Rehabilitation Medicine, Jikei University School of Medicine, Tokyo, Japan
4. Department of Rehabilitation Medicine, International University of Health and Welfare School of Medicine, Narita, Japan