1. Division of Rheumatology, Academic Hospital Santa Maria della Misericordia, Azienda Sanitaria Universitaria Friuli Centrale (ASUFC), Udine, Italy.
2. Pathophysiology Department, School of Medicine, National and Kapodistrian University of Athens, Greece.
3. Rheumatology Unit, Department of Medicine and Surgery, University of Perugia, Italy.
4. Department of Clinical and Experimental Medicine, Rheumatology Unit, University of Pisa, Italy.
5. Department of Clinical and Experimental Medicine, Rheumatology Unit, University of Pisa, Italy. chiara.baldini74@gmail.com