1. Department of Occupational Health, School of Public Health and Research Centre for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
2. Ergonomics Department, School of Public Health and Research Centre for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran
3. School of Rehabilitation, Musculoskeletal Rehabilitation Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
4. Department of Biostatistics and Epidemiology and Research Center for Health Sciences, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran