1. Research Center for Environmental Determinants of Health (RCEDH), Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
2. Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
3. Molecular and Medicine Research Center, Khomein University of Medical Sciences, Khomein, Iran
4. Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
5. Department of Health Economics, School of Health Management and Medical Information, Iran University of Medical Sciences, Tehran, Iran
6. Department of Public Health, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran