1. Department of Rehabilitation, University Hospital of Occupational and Environmental Health, Japan.
2. Department of Preventive Medicine and Community Health, School of Medicine, University of Occupational and Environmental Health, Japan.
3. Department of Rehabilitation Medicine, University of Occupational and Environmental Health, Japan.
4. Department of Cardiology, Tagawa Municipal Hospital, Japan.
5. Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School, Japan.