1. Service de Médecine Nucléaire, CHU de Bordeaux Bordeaux France
2. Institut des Neurosciences Cognitives et Intégratives d'Aquitaine, CNRS, UMR 5287, Bordeaux University Bordeaux France
3. Public Health Department, Clinical Epidemiology Unit Bordeaux University Hospital Bordeaux France
4. Service de Neurologie, CHU Bordeaux Bordeaux France
5. French Reference Centre for MSA University Hospital Bordeaux Bordeaux France
6. Inserm, UMR1219, Bordeaux Population Health Research Center, Bordeaux University, ISPED Bordeaux France
7. Univ. de Bordeaux, CNRS, IMN, UMR 5293, Bordeaux, F‐33000, France Bordeaux France
8. Invicro and Division of Brain Sciences Imperial College London London UK
9. French Reference Centre for MSA University Hospital Toulouse Toulouse France
10. Clinical Investigation Center CIC 1436 and Departments of Neurosciences and Clinical Pharmacology Inserm, Toulouse University and CHU Toulouse Toulouse France
11. Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U 1048, Toulouse University Toulouse France
12. Department of Medicine University of Otago, Christchurch, and New Zealand Brain Research Institute Christchurch New Zealand