1. Sheri Kashmir Institute, Department of Cardiology Srinagar Jammu and Kashmir India
2. University of São Paulo Department of cardiology São Paulo Brazil
3. Central Michigan University, Internal Medicine Saginaw Michigan USA
4. Samaritan Medical Center, Internal Medicine Watertown New York USA
5. University of Liverpool School of Medicine Liverpool UK
6. Division of cardiology University of Toledo Toledo Ohio USA
7. Section of Cardiac electrophysiology McLaren Greater Lansing Lansing Michigan USA