1. Department of Occupational Health Practice and Management Institute of Industrial Ecological Sciences University of Occupational and Environmental Health Kitakyushu Japan
2. Health Center University of Occupational and Environmental Health Kitakyushu Japan
3. Department of Environmental Epidemiology Institute of Industrial Ecological Sciences University of Occupational and Environmental Health Kitakyushu Japan
4. Occupational Health Training Center University of Occupational and Environmental Health Kitakyushu Japan
5. Hitachi Health Care Center Hitachi, Ltd. Hitachi Japan
6. Personnel Department Kumagai Gumi Co., Ltd. Tokyo Japan
7. Department of Preventive Medicine School of Medicine Tokai University Isehara Japan
8. Department of Mental Health Institute of Industrial Ecological Sciences University of Occupational and Environmental Health Kitakyushu Japan
9. Department of Radiological Health Science Institute of Industrial Ecological Sciences University of Occupational and Environmental Health Kitakyushu Japan
10. Department of Work Systems and Health Institute of Industrial Ecological Sciences University of Occupational and Environmental Health Kitakyushu Japan
11. Igari Occupational Health Consultant Office Tokyo Japan
12. Division of Infection Control and Prevention University of Occupational and Environmental Health Hospital Kitakyushu Japan
13. Health Administration Center Business Solution Company Tokyo Electric Power Company Holdings Tokyo Japan
14. The Ohara Memorial Institute for Science of Labour Kawasaki Japan
15. National Institute of Occupational Safety and Health Kawasaki Japan