1 Department of Electrophysiology, University Hospital Cologne, University of Cologne, Kerpener Str. 62, 59037, Cologne, Germany. Sebastian.dittrich1@uk-koeln.de.
2 Clinic for Electrophysiology, Herz- Und Diabeteszentrum NRW, Bad Oeynhausen, Germany.
3 Department of Electrophysiology, University Hospital Cologne, University of Cologne, Kerpener Str. 62, 59037, Cologne, Germany.