1. Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
2. Department of Health Policy and Management, Yale School of Public Health, New Haven, Connecticut
3. Center for Outcomes Research and Evaluation, Yale–New Haven Hospital, New Haven, Connecticut
4. Department of Health Care Policy, Harvard Medical School, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
5. Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts