1. Department of Medicine, Cleveland Clinic , Cleveland, Ohio, USA
2. Department of Cardiovascular Medicine, Heart & Vascular Institute, Cleveland Clinic , Cleveland, Ohio, USA
3. Minneapolis Heart Institute , Minneapolis, Minnesota, USA
4. Department of Thoracic and Cardiovascular Surgery, Heart and Vascular Institute, Cleveland Clinic , Cleveland, Ohio, USA
5. Department of Cardiovascular Medicine, Cleveland Clinic , Abu Dhabi, UAE