1. Division of Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
2. Department of Medicine, Yale University School of Medicine, New Haven, Connecticut
3. Division of Biostatistics and Health Services Research, University of Massachusetts Medical School, Worcester
4. Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
5. Cardiovascular Division, New York Presbyterian-Columbia University Irving Medical Center, New York
6. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
7. Department of Cardiology, Houston Methodist Hospital, Houston, Texas