1. Division of General Internal Medicine, Department of Medicine, Duke University School of Medicine, Durham, North Carolina.
2. Duke Clinical Research Institute, Duke University, Durham, North Carolina.
3. Duke Cancer Institute, Duke University, Durham, North Carolina.
4. Duke University, Durham, North Carolina.
5. Margolis Center for Health Policy, Duke University, Durham, North Carolina.
6. Four Seasons, Flat Rock, North Carolina.
7. Sanford School for Public Policy, Duke University, Durham, North Carolina.