1. Division of Cardiology, Fondazione IRCCS Policlinico San Matteo , Pavia , Italy
2. Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale , Via Tesserete 48, Lugano 6900 , Switzerland
3. Department of Cardiology, Heart Lung Centre, Leiden University Medical Centre , Leiden , The Netherlands
4. Division of Medical Sciences in Zabrze, Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian Center for Heart Diseases, The Medical University of Silesia , Zabrze , Poland
5. Department of Cardiology, Hospital de la Santa Creu i Sant Pau, IIB SANT PAU, CIBERCV, Universitat Autónoma de Barcelona , Barcelona , Spain
6. II Department of Heart Arrhythmia, National Institute of Cardiology , Warsaw , Poland
7. Heart Rhythm Management Centre, Postgraduate Program in Cardiac Electrophysiology and Pacing, Universitair Ziekenhuis Brussel – Vrije Universiteit Brussel, European Reference Networks Guard-Heart , Brussels , Belgium
8. Cardiology-Heart Rhythm Management Department, Clinique Pasteur , Toulouse , France