1. Texas Cardiac Arrhythmia Institute St. David's Medical Center Austin Texas USA
2. Department of Ecology and Evolutionary Biology Princeton University Princeton New Jersey USA
3. Cardiothoracic and Vascular Surgeons Austin Texas USA
4. Department of Clinical Internal Anesthesiologic and Cardiovascular Sciences Sapienza University of Rome Rome Italy
5. Internal Medicine East Tennessee State University Johnson City Tennessee USA
6. HCA National Medical Director of Cardiac Electrophysiology Nashville Tennessee USA
7. Interventional Electrophysiology Scripps Clinic La Jolla California USA
8. MetroHealth Medical Center Case Western Reserve University School of Medicine Ohio Cleveland USA