1. Department of Ergonomics, Research Center for Health Sciences, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
2. Department of Occupational Health and Safety Engineering, Abadan University of Medical Sciences, Abadan, Iran
3. Department of Ergonomics, Occupational Health and Safety Research Center, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran
4. Department of Biostatistics and Epidemiology, School of Public of Health, Hamadan University of Medical Sciences, Hamadan, Iran
5. Department of Ergonomics, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran