1 Department of Electrophysiology, Heart Center Leipzig, Leipzig, Germany. Electronic address: jedrzej.kosiuk@helios-kliniken.de.
2 Arrhythmia Unit, Department of Cardiology, Cardiovascular Center, Aalst, Belgium.
3 Centre for Heart Rhythm Disorders (CHRD), South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.