1. Research Center of Health and Environment, School of Health, Guilan University of Medical Sciences, Rasht, Iran
2. Health and Environmental Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
3. Department of Environmental Health Engineering, Health Center of East Azerbaijan Province, Tabriz University of Medical Sciences, Tabriz, Iran
4. Department of Environmental Health Engineering, School of Public Health, Tabriz University of Medical Sciences, Tabriz, Iran