1. School of Nursing and Midwifery, University of Tasmania, Hobart, Australia
2. Department of Health Management and Economics, School of Public Health and Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
3. Department of Occupational Health, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
4. Department of Public Health, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
5. Department of Health Services, School of Public Health, Iran University of Medical Sciences, Tehran, Iran