1. Edmond J. Safra Program in Parkinson’s Disease, Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital and Division of Neurology, UHN, Division of Neurology, University of Toronto, Toronto, ON, Canada
2. Department of Neurology, Hazrat Rasool Hospital, Iran University of Medical Sciences, Tehran, Iran
3. Krembil Brain Institute, Toronto, ON, Canada