1. Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8556, Japan
2. Department of Health Development, Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan. 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
3. Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan
4. Second Department of Surgery, University of Occupational and Environmental Health, Japan. 1-1, Iseigaoka, Yahatanishi-ku, Kitakyushu 807-8555, Japan