1. Department of Epidemiology, Environmental and Occupational Hazards Control Research Center, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Department of Epidemiology, School of Public Health, Jundishapur University of Medical Sciences, Ahvaz, Iran
3. Department of Public Health, La Trobe University, Bundoora, VIC, Australia
4. Department of Epidemiology, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5. Modeling in Health Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran