1. Rheumatology Unit, Department of Precision and Regenerative Medicine—Ionian Area, University of Bari “Aldo Moro”, 70124 Bari, Italy
2. Rheumatology Unit, Azienda Ospedaliera Policlinico di Modena, University of Modena and Reggio Emilia, 41124 Modena, Italy
3. Rheumatology Unit, University of Verona, 37126 Verona, Italy
4. Rheumatology Unit, Azienda Ospedaliero-Universitaria Senese, Università Degli Studi di Siena, 53100 Siena, Italy
5. Rheumatology Unit, University of Messina, 98125 Messina, Italy
6. Rheumatology Unit, University of Florence, 50139 Firenze, Italy
7. Radiology Unit, University of Bari “Aldo Moro”, 70124 Bari, Italy
8. Division of Rheumatology, Azienda USL-IRCCS Reggio Emilia, 42421 Reggio Emilia, Italy