1. Department of Medicine, Heart Rhythm Center Taipei Veterans General Hospital Taipei Taiwan
2. National Yang‐Ming University School of Medicine Taipei Taiwan
3. Department of Medicine, Cardiovascular Division, Cardiology and Electrophysiology Section University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Medicine, Cardiovascular Division, Cardiology and Electrophysiology Section University of Michigan Ann Arbor Michigan USA
5. Department of Radiology University of Pennsylvania Philadelphia Pennsylvania USA