1. Hiroshima Prefecture Physical Therapy Association, Japan
2. Department of Rehabilitation, Faculty of Health Sciences, Hiroshima Cosmopolitan University: 3-2-1 Otsuka-Higashi, Asaminami-Ku, Hiroshima City 731-3166, Japan
3. Hiroshima City Rehabilitation Hospital, Japan
4. Prefectural University of Hiroshima, Japan