1. Division of Cardiology, University of California, Los Angeles
2. Duke Clinical Research Center, Durham, North Carolina
3. Department of Clinical Neurosciences, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
4. Department of Neurology, University of California, Los Angeles
5. Department of Epidemiology, Michigan State University, East Lansing
6. Brigham and Women’s Hospital Heart and Vascular Center and Harvard Medical School, Boston, Massachusetts
7. Department of Neurology, Massachusetts General Hospital, Boston, Massachusetts