1. Department of Rehabilitation Medicine, Graduate School of Medicine, International University of Health and Welfare, Narita, Japan
2. Division of Rehabilitation Medicine, International University of Health and Welfare Ichikawa Hospital, Ichikawa, Japan
3. Department of Rehabilitation, Institute of Brain and Blood Vessels, Mihara Memorial Hospital, Isesaki, Japan
4. Rehabilitation Center, Ushiku Aiwa General Hospital, Ushiku, Japan
5. Home-visit Nursing Station of Ryugasaki, Ryugasaki, Japan
6. Department of Orthopaedic Surgery, International University of Health and Welfare Ichikawa Hospital, Ichikawa, Japan