1. Department of Cardiology, Villa Bianca Hospital, Trento, Italy
2. Division of Rheumatology, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Italy
3. Cardiovascular Centre, Health Authority no. 1 and University of Trieste, Italy
4. Department of Cardiology, S. Martino Hospital, Belluno, Italy