1. Rheumatology Unit, Department of Emergency and Transplantation, University of Bari, Bari, Italy
2. Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
3. Department of Geriatric Medicine, Division of Rheumatology AOUC, University of Florence, Florence, Italy
4. Research Laboratory and Division of Clinical Rheumatology, Department of Emergency and Transplantation, University of Genoa, IRCCS AOU San Martino, Genoa, Italy