1. Department of Medicine Mount Sinai Beth Israel New York City New York USA
2. Department of Cardiology Hokkaido Cardiovascular Hospital Sapporo Japan
3. Department of Cardiology Westchester Medical Center Valhalla New York USA
4. Division of Cardiology Columbia University Irving Medical Center New York City New York USA
5. Division of Cardiovascular Medicine Section of Heart Failure and Transplantation, University of Iowa Iowa City Iowa USA
6. Division of Cardiology Montefiore Medical Center, Albert Einstein College of Medicine Bronx New York USA
7. Division of Cardiology Jacobi Medical Center, Albert Einstein College of Medicine New York USA