1. Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
2. Cardiology Unit, Beato Matteo Hospital, GSD Hospitals, Vigevano, Pavia, Italy
3. Rheumatology Unit, ASST Fatebenefratelli-Sacco, University of Milan, Italy
4. IRCCS Orthopedic Institute Galeazzi, Milan, Italy