1. Department of Neurology Faculty of Medicine and University Hospital Cologne, University of Cologne Cologne Germany
2. Parkinson and Movement Disorders Unit, Department of Neurosciences (DNS) University of Padua Padova Italy
3. Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Institute of Health Madrid Spain
4. Department of Neurology University Hospital Giessen and Marburg Marburg Germany
5. Division of Neurology Lund University Lund Sweden
6. Department of Neurology Skåne University Hospital Lund Sweden
7. Department of Neurology Karl Landsteiner Institute for Neuroimmunological and Neurodegenerative Disorders at Klinik Donaustadt Vienna Austria
8. Department of Neurology Nizam's Institute of Medical Sciences Hyderabad India
9. Edmond J. Safra Program in Parkinson's Disease, Morton and Gloria Shulman Movement Disorders Clinic Toronto Western Hospital–University Health Network (UHN) Toronto Ontario Canada
10. Division of Neurology University of Toronto Toronto Ontario Canada
11. Krembil Research Institute Toronto Ontario Canada
12. Department of Parkinson's Disease & Movement Disorders Rehabilitation Moriggia‐Pelascini Hospital–Gravedona ed Uniti Como Italy
13. University and Institute for Research and Medical Care IRCCS San Raffaele Rome Italy
14. Department of Neurology Juntendo University Graduate School of Medicine Tokyo Japan
15. Center for Parkinson's Disease and Movement Disorders Manipal Hospital Bangalore India
16. Parkinson's Disease and Movement Disorders Clinic Bangalore India
17. Insituto Nacional de Neurologia y Neurocirugia Movement Disorders Clinic Mexico City Mexico
18. Movement Disorder Clinic National Institute of Neurology and Neurosurgery Mexico City Mexico
19. Department of Neurology, Faculty of Medicine Transilvania University of Brașov Brașov Romania
20. Department of Neurology County Emergency Clinic Hospital Brașov Romania
21. Department of Clinical Neurophysiology University Medical Center Göttingen Göttingen Germany
22. Parkinson Foundation International Centre of Excellence King's College Hospital London United Kingdom
23. Institute of Psychiatry, Psychology and Neuroscience King's College London London United Kingdom
24. Departments of Psychiatry and Neurology Perelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania USA
25. Parkinson's Disease Research, Education and Clinical Center (PADRECC) Corporal Michael J. Crescenz Veterans Affairs Medical Center Philadelphia Pennsylvania USA
26. Department of Neurology University Hospital Schleswig‐Holstein (UKSH), Christian‐Albrechts‐University Kiel Kiel Germany
27. University of Cincinnati Gardner Neuroscience Institute, Gardner Family Center for Parkinson's Disease and Movement Disorders, Department of Neurology University of Cincinnati Cincinnati Ohio USA
28. Department of Neurology, National Neuroscience Institute Singapore General Hospital Singapore Singapore
29. Neuroscience and Behavioral Disorders (NBD) Department Duke–NUS Medical School Singapore Singapore
30. Chulalongkorn Centre of Excellence for Parkinson's Disease & Related Disorders, Department of Medicine, Faculty of Medicine Chulalongkorn University and King Chulalongkorn Memorial Hospital Bangkok Thailand
31. The Academy of Science The Royal Society of Thailand Bangkok Thailand
32. Movement Disorder Unit, Department of Neurology Westmead Hospital Westmead Australia
33. Movement Disorders Unit, Internal Medicine Department Universidade Federal de Minas Gerais Belo Horizonte Brazil
34. Paracelsus‐Elena‐Klinik Kassel Germany
35. Department of Neurosurgery University Medical Center Göttingen Göttingen Germany
36. Institute of Pharmaceutical Sciences, Faculty of Life Sciences and Medicine King's College London London United Kingdom
37. NIHR Mental Health Biomedical Research Centre and Dementia Biomedical Research Unit South London and Maudsley NHS Foundation Trust and King's College London London United Kingdom