1. Department of Internal Medicine, Central Michigan University College of Medicine Mount Pleasant Michigan USA
2. Department of Internal Medicine Monmouth Medical Center Long Branch New Jersey USA
3. Department of Internal Medicine Cook County Health System Chicago Illinois USA
4. Department of Internal Medicine West Virginia University Morgantown West Virginia USA
5. Department of Internal Medicine Forrest General Hospital Hattiesburg Mississippi USA
6. Department of Electrophysiology Sheri Kashmir Institute of Medical Sciences Srinagar, Kashmir India
7. Division of Cardiology McLaren Greater Lansing Lansing Michigan USA