1. Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
2. Movement Disorder Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
3. Center for Environmental Health Engineering, Kerman University of Medical Sciences, Kerman, Iran
4. Science and Research branch of Islamic Azad University, Tehran, Iran
5. School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran