1. Department of Epidemiology and Prevention, National Center for Global Health and Medicine
2. Hitachi, Ltd.
3. Teikyo University Graduate School of Public Health
4. Mitsui Chemicals , Inc.
5. Azbil Corporation
6. Nippon Steel & Sumitomo Metal Corporation Kimitsu Works
7. Mitsubishi Fuso Truck and Bus Corporation
8. Seijinkai Shizunai Hospital
9. YAMAHA CORPORATION
10. Mizue Medical Clinic, Keihin Occupational Health Center
11. Furukawa Electric Co., Ltd.
12. Department of Global Public Health, University of Tsukuba
13. All Japan Labour Welfare Foundation
14. Mitsubishi Plastics, Inc.
15. Department of Food and Health Sciences, Fukuoka Women’s University
16. National Institute of Public Health