1. Occupational Environment Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
2. Department of Epidemiology and Biostatistics, Public Health School, Yazd Shahid Sadoughi University of Medical Sciences, Yazd, Iran
3. Epidemiology and Biostatistics Department, Health School, Occupational Environment Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
4. Student Research Committee, Rafsanjan University of Medical Sciences, Rafsanjan, Iran