1. Department of Cardiology, Heart Center, Academic Medical Center, Amsterdam, The Netherlands;
2. European Heart Rhythm Association, representing the European Society of Cardiology, Sophia Antipolis, France;
3. European Resuscitation Council, Nil, Belgium, and Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne, Germany;
4. IRCCS Istituto Auxologico Italiano, Center for Cardiac Arrhythmias of Genetic Origin, Via Pier Lombardo, 22, 20135 Milan, Italy