1. Department of Cardiology Kokura Memorial Hospital Kitakyushu Japan
2. Abteilung für Kardiologie, Medizinische Klinik III, Agaplesion Markus Krankenhaus Cardioangiologisches Centrum Bethanien, Frankfurt Academy For Arrhythmias Frankfurt am Main Germany
3. Department of Clinical Engineering Kokura Memorial Hospital Kitakyushu Japan