Affiliation: | 1. Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA;2. Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA;3. Electrophysiology Section, Cardiology Division, Temple University Health System, Philadelphia, Pennsylvania, USA;4. Neurology Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA |