1. Department of Medical Sciences and Public Health University of Cagliari Cagliari Italy
2. Human Motor Control Section, NINDS, NIH Bethesda MD USA
3. Department of Human Neurosciences Sapienza University of Rome Rome Italy
4. IRCCS NEUROMED Pozzilli Italy
5. Neurology, Radiology, Neuroscience, Physical Therapy, Occupational Therapy Washington University in St. Louis St Louis MO USA
6. Virginia Commonwealth University Richmond VA USA
7. Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology Baylor College of Medicine Houston TX USA
8. Institute of Systems Motor Science University of Luebeck Luebeck Germany
9. Rush University Medical Center New Philadelphia OH USA
10. Toronto Western Hospital, Krembil Brain Institute University of Toronto Toronto ON Canada
11. Department of Neurology and Movement Disorder Centre Seoul National University Hospital Seoul South Korea
12. Department of Neurology Johns Hopkins University Baltimore MD USA
13. Department of Neurology University of New Mexico Albuquerque NM USA
14. Institute of Systems Motor Science and Institute of Neurogenetics University of Lübeck , Lübeck Germany
15. Section of Neurology San Paolo Hospital Bari Italy
16. Department of Neurology and Human Genetics Emory University Atlanta GA USA