Institution: | 1. Second Department of Cardiology, Laboratory of Cardiac Electrophysiology, “Evangelismos” General Hospital of Athens, , Athens, Greece;2. Department of Cardiology, “G. Gennimatas” General Hospital of Athens, , Athens, Greece;3. Hellenic Center for Disease Control and Prevention, , Athens, Greece;4. Department of Cardiology, University Hospital of Ioannina, , Ioannina, Greece;5. “Dromokaiteio” Psychiatric Hospital of Attica, , Attica, Greece |