1 Postgraduate Program in Cardiac Electrophysiology and Pacing, European Reference Networks Guard-Heart, Heart Rhythm Management Center, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, Brussels, Belgium.
2 Department of Cardiology, EpiCURA, Hornu, Belgium.
3 Department of Cardiology, Istituti Clinici Scientifici Maugeri, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Bari, Italy.
4 Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.