1. Center of Excellence for Occupational Health, Occupational Health and Safety Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
2. Center of Excellence for Occupational Health, Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
3. Department of Biostatistics, Modeling of Noncommunicable Diseases Research Center, School of Public Health, Hamadan University of Medical Science, Hamadan, Iran