Department of Environmental Health Engineering, Student Research Committee, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Electronic address: YA.FAKHRI@Sbmu.ac.ir. Council for Nutritional and Environmental Medicine, Mo i Rana, Norway. Electronic address: bjorklund@conem.org. Environmental and Occupational Hazards Control Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Department of Neurological and Movement Sciences, University of Verona, Italy. Department of Environmental Health Engineering, School of Public Health, Semnan University of Medical Sciences, Semnan, Iran. Food Health Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, Iran. Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran. Environmental Health Research Center, Golestan University of Medical Sciences, Golestan, Iran. Department of Environmental Health Engineering, Student Research Committee, School of Public Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Department of Environmental Health Engineering, School of Health, Khoy University of Medical Sciences, Khoy, Iran. Sina Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Department of Environmental Health Engineering, School of Public Health, Qom University of Medical Sciences, Qom, Iran. Department of Environmental Health Engineering, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran. Deputy of Health, Babol University of Medical Sciences, Babol, Iran.