1. The Edmond J. Safra Program in Parkinson's Disease and Morton and Gloria Shulman Movement Disorders Clinic, University Health Network, Toronto Western Hospital, Division of NeurologyUniversity of Toronto Toronto Ontario Canada
2. Movement Disorders Center, Department of Neurology, School of MedicineUniversity of São Paulo São Paulo Brazil
3. Department Health Research Methods, Evidence, and ImpactMcMaster University Hamilton Ontario Canada
4. Krembil Brain Institute Toronto Ontario Canada