1. NYU Grossman School of Medicine, New York City, New York
2. Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts
3. Division of General Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts
4. Richard A. and Susan F. Smith Center for Outcomes Research in Cardiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts
5. Harvard Medical School, Boston, Massachusetts