1. Department of Occupational Health and Safety, Faculty of Public Health, Mahidol University, Thailand
2. School of Occupational Health and Safety, Suranaree University of Technology, Thailand
3. Program of Occupational Health and Safety, Faculty of Public Health, Naresuan University, Thailand
4. Department of Public Health, Faculty of Physical Education, Srinakharinwirot University, Thailand
5. The Office of Disease Prevention and Control, Thailand
6. Department of Occupational Safety and Health Management, School of Health Sciences, University of Occupational and Environmental Health, Japan
7. Department of Medical Humanities, School of Medicine, University of Occupational and Environmental Health, Japan