1. Department of Rehabilitation, Nippon Medical School Chiba Hokusoh Hospital, Inzai, Japan
2. Department of Rehabilitation and Physical Medicine, Mito Clinical Education and Training Center, Tsukuba University Hospital, Tsukuba, Japan
3. Department of Rehabilitation, Kagoshima University Hospital, Kagoshima, Japan
4. Department of Rehabilitation Medicine, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan