1. Jacobi Medical Center/Albert Einstein College of Medicine The Bronx New York USA
2. University of Cincinnati Medical Center Cincinnati Ohio USA
3. Department of Medicine Aristotle University of Thessaloniki Thessaloniki Greece
4. Division of Cardiology Rocky Mountain Regional VA Medical Center Aurora Colorado USA
5. General Hospital of Filiates Filiates Greece
6. Section of Cardiovascular Medicine, Yale University School of Medicine Yale New Haven Hospital New Haven Connecticut USA
7. Division of Cardiology Jacobi Medical Center/Albert Einstein College of Medicine The Bronx New York USA
8. Department of Cardiology Montefiore Medical Center/Albert Einstein College of Medicine New York City New York USA