1. Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Harvard University, Boston, Massachusetts
2. Department of Biostatistics, T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts
3. Department of Health Policy and Management, T. H. Chan School of Public Health, Harvard University, Boston, Massachusetts
4. Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Harvard University, Boston, Massachusetts
5. Center for Health Economics and Policy, Institute for Public Health and Cardiovascular Division, School of Medicine, Washington University in St Louis, St Louis, Missouri