1. Division of Cardiovascular Medicine University of Toledo Toledo Ohio USA
2. Department of Internal Medicine University of North Dakota Bismarck North Dakota USA
3. Section of Cardiology, Baylor College of Medicine Houston Texas USA
4. Department of Internal Medicine Lincoln Medical Center New York New York USA
5. Faculty of Medicine Ain Shams University Cairo Egypt
6. Heart and Vascular institute, Promedica Toledo Hospital Toledo Ohio USA
7. Department of Cardiovascular Medicine Heart and Vascular Institute, Cleveland Clinic Foundation Cleveland Ohio USA
8. Department of Medicine, Division of Cardiology Alpert Medical School of Brown University Providence Rhode Island USA
9. Lifespan Cardiovascular Institute Providence Rhode Island USA