1. Internal Medicine, Wayne State University, St Antoine street , Detroit, MI 48201 , USA
2. Internal Medicine, Baptist Health System, 400 Taylor Road Montgomery , AL 36117 , USA
3. Clinical & Translational Science Institute, West Virginia University , Morgantown, WV 26506 , USA
4. Division of Cardiology, Promedica Toledo Hospital , 2142 N Cove Blvd, Toledo, OH 43699 , USA
5. Division of Cardiology, University of California-Davis , 3941 J St, Sacramento, CA 95819 , USA
6. Division of Cardiology, West Virginia University . Morgantown, WV 26506 , USA