1. Department of Cardiology, Erasme Hospital, HUB, Université Libre de Bruxelles , Route de Lennik 808, 1070 Brussels , Belgium
2. Steno Diabetes Center Copenhagen , Borgmester Ib Juuls Vej 83, 2730 Herlev , Denmark
3. Department of Clinical Medicine, University of Copenhagen , Blegdamsvej 3B, 2200 Copenhagen , Denmark
4. 1st Department of Cardiology, National and Kapodistrian University of Athens Medical School , Athens , Greece
5. Department of Arrhythmology and Electrophysiology, IRCCS Policlinico San Donato , Milano , Italy
6. Second Division of Cardiovascular Diseases, Cardiac and Thoracic Department, New Santa Chiara Hospital, University of Pisa , Pisa , Italy