1. Jackson Memorial Hospital, Department of Neurology, University of Miami School of Medicine, Miami, Florida
2. The Edmond J. Safra Program in Parkinson’s Disease and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, Division of Neurology, University of Toronto, Toronto, Ontario, Canada
3. Department of Medicine, University of Adelaide, Adelaide, South Australia, Australia
4. Institute of Neuroscience, Favaloro University Hospital, Buenos Aires, Argentina