1 Department of Neurology, Motahari Clinic, Shiraz University of Medical Sciences, Shiraz, Iran;
2 Department of Neurology, Motahari Clinic, Shiraz University of Medical Sciences, Shiraz, Iran; ; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran;
3 Department of Surgery, Louisiana State University Health Sciences Center, Shreveport, LA, USA.