1. Department of Medicine, West Virginia University, Morgantown, West Virginia, USA
2. Department of Medicine, Rochester General Hospital, Rochester, New York, USA
3. Division of Cardiovascular Medicine, West Virginia University Heart and Vascular Institute, Morgantown, West Virginia, USA
4. Department of Medicine, Abington Jefferson Health, Abington, Philadelphia, USA
5. Department of Medicine, Icahn School of Medicine at Mount Sinai Elmhurst Hospital Queens New York, New York, USA
6. Keele Cardiovascular Research Group, Centre for Prognosis Research, Keele University, Stoke-on-Trent, UK
7. Department of Medicine, St. Mary’s of Saginaw Hospital, Saginaw, Michigan, USA
8. Division of Cardiovascular Medicine, University of California San Diego, La Jolla, California, USA