1. Research Center for Health Sciences , Hamadan University of Medical Sciences , Hamadan , Iran
2. Department of Epidemiology and Biostatistics, Neuroscience Research Center, Faculty of Health , Qom University of Medical Sciences , Qom , Iran
3. Autism Spectrum Disorders Research center , Hamadan University of Medical Sciences , Hamadan , Iran
4. Izadi Hospital , Qom University of Medical Sciences , Qom , Iran
5. Department of Occupational Health, Research Center for Environmental Pollutants, Faculty of Health , Qom University of Medical Sciences , Qom , Iran
6. Department of Public Health, Research Center for Environmental Pollutants, Faculty of Health , Qom University of Medical Sciences , Qom , Iran
7. Department of Biostatistics, Faculty of Medicine , Zanjan University of Medical Sciences , Zanjan , Iran
8. Health Promotion Research Center, Faculty of Health , Zahedan University of Medical Sciences , Zahedan , Iran