1. UCSF Weill Institute for Neurosciences University of California, San Francisco San Francisco California USA
2. Department of Neurology Northwestern University Chicago Illinois USA
3. Department of Neurology University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Neurology Ruhr University Bochum Bochum Germany
5. Sutter East Bay Medical Group Lafayette California USA
6. Icahn School of Medicine at Mount Sinai New York New York USA
7. Texas Tech University Health Sciences Center Amarillo Texas USA
8. Division of Neurology, Department of Medicine, St Michael's Hospital University of Toronto Toronto ON Canada
9. Li Ka Shing Knowledge Institute University of Toronto Toronto ON Canada
10. Department of Neurology Yale University New Haven Connecticut USA
11. Department of Neurology Kaiser Permanente San Francisco San Francisco California USA
12. Department of Neurology Swedish Medical Center Seattle Washington USA
13. Department of Neurology Columbia University Irving Medical Center New York New York USA
14. Department of Neurology University of Michigan Ann Arbor Michigan USA
15. Rocky Mountain MS Center Salt Lake City Utah USA
16. Buck Institute for Research on Aging Novato California USA