1. Department of health management and economics, School of public health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
2. Department of Environmental Health Engineering, Environmental Science and Technology Research Center, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
3. HSE Master, Shohada-e-Kargar Hospital, Social Security Organization of Yazd, Yazd, Iran