| Ferreri F | Alzheimer's Disease Research Unit, McGill Centre for Studies in Aging, Douglas Hospital, Verdun, Quebec, Canada. |
| Fox SH | Movement Disorders Centre, Division of Neurology University of Toronto, Toronto, Ontario, Canada. |
| Gauthier S | Alzheimer's Disease Research Unit, McGill Centre for Studies in Aging, Douglas Hospital, Verdun, Quebec, Canada. |
| Lang AE | University of Toronto, Department of Medicine, Movement Disorders Center, 399 Bathurst Street, McL7 402, Canada. |
| Lozano AM | Toronto Western Hospital, Toronto, Ontario M5T 2S8, Canada. |
| Moro E | University of Toronto, Department of Medicine, Movement Disorders Center, 399 Bathurst Street, McL7 402, Canada. elena.moro@uhn.on.ca |
| Piboolnurak P | Movement Disorders Center, Division of Neurology, University of Toronto, Toronto Western Hospital, Toronto, Ontario, Canada. |
| Rajput A | Royal University Hospital, Saskatchewan, S7N 0W8, Canada. rajputa@sask.usask.ca |
| Rajput AH | Royal University Hospital, Saskatchewan, S7N 0W8, Canada. |
| Stoessl J | University of British Columbia and Vancouver Coastal Health, Pacific Parkinson's Research Centre & National Parkinson Foundation Centre of Excellence, 2221 Wesbrook Mall, Vancouver, BC, V6T 2B5, Canada. jstoessl@interchange.ubc.ca. |
| Troster AI | Department of Psychiatry, Toronto Western Hospital, Toronto, Canada. |
| Voon V | Department of Psychiatry, Toronto Western Hospital, Toronto, Canada. voonv@ninds.nih.gov |
| de Bie RM | Movement Disorders Centre, Division of Neurology University of Toronto, Toronto, Ontario, Canada. |