Iranian Journal of Health, Safety and Environment e-ISSN: :2345-5535 Iran university of Medical sciences, Tehran, Iran
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		Reza Shokoohi
								
1)	Department of Environmental Health Engineering & Research Centre for Health Sciences, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran		
Iran, Islamic Republic of	
		Hassan Zolghadranasab
								
2)	School of Public Health, Research Center of Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran		
Iran, Islamic Republic of	
		Samane Shanesaz
								
School of Public Health, Research Center of Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran		
Iran, Islamic Republic of