1. Department of Health Policy and ManagementThe University of North Carolina at Chapel Hill Chapel Hill North Carolina
2. Duke Margolis Center for Health Policy Durham North Carolina
3. Department of Population Health SciencesDuke University Durham North Carolina
4. The Cecil G. Sheps Center for Health Services ResearchUniversity of North Carolina at Chapel Hill Chapel Hill North Carolina
5. Duke Clinical Research Institute Durham North Carolina
6. Department of Biostatistics and BioinformaticsDuke University Durham North Carolina
7. Department of Neurology, Massachusetts General HospitalHarvard Medical School Boston Massachusetts
8. Department of Neurology, Cumming School of MedicineUniversity of Calgary Calgary Canada
9. Division of CardiologyDavid Geffen School of Medicine at UCLA Los Angeles California
10. Duke Sanford School of Public Policy Durham North Carolina