1. Harvard School of Public Health Boston Massachusetts
2. Bayer HealthCare Berlin Germany
3. University Hospital Basel Basel Switzerland
4. VU University Medical Center Amsterdam The Netherlands
5. Ottawa Hospital Research Institute Ottawa Canada
6. Heinrich‐Heine Universität Düsseldorf Germany
7. UCL Institute of Neurology London United Kingdom
8. Hospital Universitari Vall d'Hebron Barcelona Spain
9. CHU‐Hôpital Pontchaillou Rennes France
10. Department of Neurology University Hospital of Bonn Bonn Germany