1. Division of Labor Market, Institute of Labor, Occupational Safety and Health, Ministry of Labor, Taipei, Taiwan
2. School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
3. Department of Public Health, College of Medicine, Taipei Medical University, Taipei, Taiwan
4. Department of Psychology, National Chengchi University, Taiwan
5. Chia Nan University of Pharmacy & Science, Taiwan