1. Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas
2. Department of Population Health Sciences, University of Utah School of Medicine, Salt Lake City
3. Division of Cardiology, Department of Internal Medicine, University of Alabama at Birmingham
4. Division of General Internal Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
5. Department of Medicine, University of Mississippi Medical Center, Jackson
6. Division of Cardiology, Department of Internal Medicine, Emory University School of Medicine, Atlanta, Georgia