1. Kasturba Medical College, Manipal, India (A.K.).
2. Division of Cardiology, Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC (M.F., R.J.M.).
3. Division of Cardiology, University of Texas Southwestern, Dallas (A.P.).
4. Department of Epidemiology, University of North Carolina at Chapel Hill (A.K.-N.).
5. Department of Epidemiology, University of Kentucky College of Public Health, Lexington (A.K.-N.).
6. Department of Medicine, University of Mississippi Medical Center, Jackson (M.E.H.).
7. Division of Cardiovascular Medicine, Brigham and Women’s Hospital, Boston, MA (M.V.).
8. Joint Department of Biomedical Engineering, University of North Carolina, North Carolina State University, Chapel Hill (M.C.C.).