1. Department of Rehabilitaion Medicine, The Jikei University School of Medicine, Minato, Japan
2. Department of Rehabilitaion Medicine, Kikyougahara Hospital, Nagano, Japan
3. Department of Rehabilitaion Medicine, Kyoto Ohara Memorial Hospital, Kyoto, Japan
4. Department of Rehabilitaion Medicine, Isawa Kyoritsu Hospital, Yamanashi, Japan