1. Department of Cardiology, Bern University Hospital, University of Bern, Freiburgstrasse 8, Bern, Switzerland
2. Division of Clinical Cardiology, A.O.R.N. Sant'Anna e San Sebastiano, F. Palasciano, Caserta, Italy
3. Department of Translational Medical Sciences, University of Campania “Luigi Vanvitelli”, P.zza L. Miraglia 2, Naples, Italy