1. Department of Molecular Medicine, Section of Cardiology, University of Pavia, Pavia, Italy
2. Cardiac Intensive Care Unit, Arrhythmia and Electrophysiology and Experimental Cardiology, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy
3. Department of Emergency Medicine, Medical University of Vienna, Vienna, Austria
4. Division of Cardiology, Cardiocentro Ticino, Lugano, Switzerland
5. Service of Clinical Epidemiology and Biometry, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
6. Fondazione Ticino Cuore, Breganzona, Switzerland
7. Division of Cardiology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy