Affiliation: | 1. Sanford School of Public Policy, Duke University, Durham, North Carolina;2. Margolis Center for Health Policy, Duke University, Durham, North Carolina;3. Social Science Research Institute, Duke University, Durham, North Carolina;4. Duke Cancer Institute, Durham, North Carolina Duke University School of Medicine, Durham, North Carolina;5. Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts |