Affiliation: | 1. Department of Rheumatology, Gaetano Pini Institute, Milan, Italy;2. Department of Rheumatology, University of Pavia, IRCCS Policlinico San Matteo Foundation, Pavia, Italy;3. Rheumatology and Immunology Unit, University of Brescia, Spedali Civili, Brescia, Italy;4. Rheumatology Unit, University of Milan, L. Sacco Hospital, Milan, Italy;5. Department of Rheumatology, Azienda Ospedaliero‐Universitaria Città della Salute e della Scienza, Torino, Italy;6. Rheumatology Unit, Ospedale Mauriziano, Torino, Italy |