1. Department of Neurology Medical University Innsbruck Innsbruck Austria
2. Department of Neurology New York University Grossman School of Medicine New York New York USA
3. Dipartimento di Scienze Biomediche e Neuromotorie Università di Bologna Bologna Italy
4. IRCCS, Istituto delle Scienze Neurologiche di Bologna Bologna Italy
5. Neurology Clinic, Clinical Center of Serbia, Faculty of Medicine University of Belgrade Beograd Serbia
6. Clinical Science, Assessment and Innovation, Department of Clinical Development Lundbeck Valby Denmark
7. Department of Neurology, County Clinic Hospital, Faculty of Medicine Transylvania University Brasov Romania
8. CHU Bordeaux, Service de Neurologie des Maladies Neurodégénératives, IMNc Bordeaux France
9. German Center for Neurodegenerative Diseases (DZNE) Munich Germany
10. Department of Neurology Hannover Medical School Hannover Germany
11. Patient Advocacy Group Multiple System Atrophy Coalition McLean Virginia USA
12. Department of Neurology and Movement Disorder Center Seoul National University Hospital Seoul South Korea
13. Department of Neurology University Hospital Bonn Bonn Germany
14. German Center for Neurodegenerative Diseases (DZNE) Bonn Germany
15. Department of Neurology Ludwig‐Maximilians‐Universität München Munich Germany
16. Munich Cluster for Systems Neurology (SyNergy) Munich Germany
17. SME MODAG GmbH Wendelsheim Germany
18. Center for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED) Carlos III Institute of Health Madrid Spain
19. Parkinson's Disease and Movement Disorders Center, Division of Neurology, Department of Medicine The Ottawa Hospital Research Institute, University of Ottawa Brain and Mind Institute Ottawa Ontario Canada
20. Department of Medicine, Surgery and Dentistry, Neuroscience Section University of Salerno Salerno Italy
21. Department of Neurology David Geffen School of Medicine at UCLA Los Angeles California USA
22. Pharmaceutical Company Biohaven Pharmaceuticals New Haven Connecticut USA
23. French Reference Center for MSA, CIC 1436, NS‐Park/FCRIN network and NeuroToul COEN Center University Hospital of Toulouse, University of Toulouse 3 and INSERM Toulouse France
24. Department of Clinical Neurosciences, UCL Queen Square Institute of Neurology University College London London United Kingdom
25. Department of Neurology, Laboratory of Neurodegenerative Disorders, Rare Diseases Center West China Hospital, Sichuan University Chengdu China
26. Department of Neurological Sciences Rush University Medical Center Chicago Illinois USA
27. Department of Neurology Mayo Clinic Rochester Minnesota USA
28. University of Bordeaux, CNRS, IMN, UMR 5293 Bordeaux France
29. Department of Medicine University of Otago Christchurch New Zealand
30. New Zealand Brain Research Institute Christchurch New Zealand