1. HM CINAC, Hospital Universitario HM Puerta del Sur Madrid Spain
2. Department of Anatomy, Histology and Neuroscience, School of Medicine Universidad Autónoma de Madrid Madrid Spain
3. CHDI Foundation/CHDI Management, Inc Princeton New Jersey USA
4. Neurology Department Hospital Universitario Burgos Burgos Spain
5. Parkinson's Disease and Movement Disorders Center, Division of Neurology, Department of Medicine The Ottawa Hospital Research Institute, University of Ottawa Ottawa Ontario Canada
6. Division of Neurology and the Mah Pooi Soo & Tan Chin Nam Centre for Parkinson's & Related Disorders, Faculty of Medicine University of Malaya Kuala Lumpur Malaysia
7. Turner Institute for Brain and Mental Health, School of Psychological Sciences Monash University Clayton Victoria Australia
8. International Movement Disorders Society Milwaukee Illinois USA
9. Neurology Department, School of Medicine University of Pittsburgh Pittsburgh Pennsylvania USA
10. Movement Disorders Department Lille University Medical Center Lille France
11. Mitsubishi Tanabe Pharma America Jersey City New Jersey USA
12. Neurology Department Samsung Medical Center School of Medicine Seoul South Korea
13. Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology Centre of Expertise for Parkinson & Movement Disorders Nijmegen The Netherlands
14. Department of Neurology Oregon Health and Science University Portland Oregon USA
15. Department of Neurology Ohio State Wexner Medical Center Columbus Ohio USA
16. George‐Huntingon‐Institute & Department of Clinical Radiology University of Muenster Münster Germany
17. Department of Neurodegeneration, Hertie Institute for Clinical Brain Research University of Tuebingen Tübingen Germany
18. Discipline of Physiotherapy, Sydney School of Health Sciences, Faculty of Medicine and Health University of Sydney Sydney New South Wales Australia
19. Center for Health + Technology and Department of Neurology University of Rochester Medical Center Rochester New York USA
20. Department of Neurology University Hospital Schleswig‐Holstein, Kiel University Kiel Germany
21. Gardner Family Center for Parkinson's Disease and Movement Disorders and Neurology Department University of Cincinnati Cincinnati Ohio USA
22. Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Institute of Health Madrid Spain
23. Department of Neurological Sciences Rush University Medical Center Chicago Illinois USA