1. Harvard Medical School, Boston, Massachusetts
2. Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco
3. Section of Cardiology, Department of Medicine, San Francisco Veterans Affairs Medical Center, San Francisco, California
4. Center for Outcomes Research and Evaluation, Yale New Haven Hospital, New Haven, Connecticut
5. Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
6. Section of General Internal Medicine and the National Clinician Scholars Program, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
7. Department of Health Policy and Management, Yale School of Public Health, New Haven, Connecticut