1. Department of Internal Medicine University of Toledo Toledo Ohio USA
2. Department of Internal Medicine University of Kentucky Lexington Kentucky USA
3. Department of Cardiovascular Medicine University of Connecticut Farmington Connecticut USA
4. Department of Internal Medicine State University of New York Downstate Medical Center Brooklyn New York USA
5. Department of Cardiology Case Western Reserve University/MetroHealth Medical Center Cleveland Ohio USA
6. Department of Cardiology James Cook University Hospital Middlesbrough UK
7. Department of Cardiovascular Medicine University of Toledo Toledo Ohio USA