1. Iranian Center of Neurological Research, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
2. Neurology Department, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
3. Ziaian Hospital, Department of Family Medicine, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
4. Tehran University of Medical Sciences, Tehran, Iran
5. Neuroscience Research Center, Iran University of Medical Sciences, Tehran, Iran