1. Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Boston, Massachusetts
2. Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts
3. Residency Program, Department of Internal Medicine, Boston Medical Center, Boston, Massachusetts
4. Cardiovascular Engineering, Inc, Norwood, Massachusetts
5. Section of Cardiovascular Medicine, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
6. Center for Computing and Data Sciences, Boston University, Boston, Massachusetts
7. Framingham Heart Study, Framingham, Massachusetts
8. Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts