1. Department of Industrial Management, Aletheia University, Taipei, Taiwan
2. Department of Environmental Engineering, National Ilan University, Ilan, Taiwan
3. Institute of Occupational Safety and Health, Council of Labor Affairs, Executive
Yuan, Taipei, Taiwan
4. Institutes of Environmental Health, National Taiwan University College
of Public Health, Taipei, Taiwan
5. Institute of Environmental Health, China Medical University College of
Public Health, Taichung, Taiwan
6. Institutes of Preventive Medicine, National Taiwan University College
of Public Health, Taipei, Taiwan