1. IRCCS Neuromed Pozzilli Italy
2. Edmond J. Safra Program in Parkinson’s Disease Morton and Gloria Shulman Movement Disorders Clinic Toronto Western Hospital, University Health Network Toronto Ontario Canada
3. Division of Neurology University of Toronto Toronto Ontario Canada
4. Krembil Brain Institute Toronto Ontario Canada
5. Human Motor Control Section National Institute of Neurological Disorders and StrokeNational Institutes of Health Bethesda Maryland USA
6. Department of Human Neurosciences Sapienza University of Rome Rome Italy