1. Department of Cardiovascular Medicine University of Texas Medical Branch Galveston TX
2. Department of Cardiology Ain Shams University Cairo Egypt
3. Division of Cardiology Massachusetts General Hospital and Harvard Medical School Boston MA
4. Division of Cardiovascular Medicine University of Missouri Kansas City MO
5. Department of Cardiovascular Medicine University of Kentucky Lexington KY
6. Division of Cardiology Minneapolis Heart Institute Minneapolis MN
7. Section of Cardiology Baylor School of Medicine and the Michael E. DeBakey VA Medical Center Houston TX
8. Division of Cardiothoracic Surgery Michael E. DeBakey Department of Surgery Baylor College of Medicine Houston TX