1. Department of Medicine, Duke University School of Medicine, Durham, North Carolina
2. Health Services Research and Development Center of Innovation, Durham Veterans Affairs Health Care System, Durham, North Carolina
3. School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill
4. School of Medicine, University of Michigan, Ann Arbor
5. Fuqua School of Business, Duke University, Durham, North Carolina
6. Sanford School of Public Policy, Duke University, Durham, North Carolina