1. Texas Cardiac Arrhythmia InstituteSt. David's Medical Center Austin Texas
2. Electrophysiology Unit, Department of Cardiovascular InterventionsCentral Chest Institute of Thailand Nonthaburi Thailand
3. HCA National Medical Director of Cardiac Electrophysiology USA
4. Interventional ElectrophysiologyScripps Clinic La Jolla California
5. MetroHealth Medical CenterCase Western Reserve University School of Medicine Cleveland Ohio