1. Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston
2. Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
3. British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, United Kingdom
4. Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota
5. Department of Laboratory Medicine and Pathology, Hennepin Healthcare/Hennepin County Medical Center and University of Minnesota, Minneapolis
6. Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, United Kingdom
7. Division of Cardiology, Massachusetts General Hospital, Boston
8. Baim Institute for Clinical Research, Boston, Massachusetts