1. Non-Communicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
2. Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
3. Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
4. Department of Biochemistry, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
5. Student Research Committee, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
6. Department of Neurology, Ghaem Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
7. Department of Clinical Neurological Science, University Hospital, London Health Science Center, University of Western Ontario, London, Ontario, Canada
8. Department of Epidemiology and Biostatistics, Western University, London, Ontario, Canada