1. New Taipei City Hospital, Taipei 241, Taiwan
2. Taipei Medical University, Taipei 110, Taiwan
3. Department of Healthcare Management, Yuanpei University, Hsinchu 700, Taiwan
4. Oriental Institute of Technology, Taipei 220, Taiwan
5. Business Place Hygiene Management, Department of Health, Taipei City Government, Taipei 110, Taiwan
6. Institute of Health and Welfare Policy, National Yang-Ming University, Taipei 112, Taiwan
7. Department of Nursing, Kang-Ning Junior College of Medical Care and Management, Taipei 114, Taiwan
8. Cheng Hsin General Hospital, Shih-Pai 112, Taipei, Taiwan
9. Faculty of Public Health, School of Medicine, Fu-Jen Catholic University, Taipei 242, Taiwan
10. Department of Crime Prevention and Correction, Central Police University, Taoyuan 333, Taiwan