1. Division of Rheumatology; Misericordia e Dolce Hospital; Prato Italy
2. Department of Medicine and Health Sciences; University of Molise; Campobasso Italy
3. Division of Rheumatology; Day Hospital Unit; Istituto Ortopedico G. Pini; Milano Italy
4. 2nd Chair of Rheumatology; Department of Medical Sciences; University of Cagliari; Cagliari Italy
5. Rheumatology Department of Lucania; San Carlo Hospital of Potenza and Madonna delle Grazie Hospital of Matera; Potenza Italy
6. Rheumatology Unit; Department of Internal Medicine; Azienda Ospedaliera ASMN; Istituto di Ricovero e Cura a Carattere Scientifico; Reggio Emilia Italy
7. Rheumatology Research Unit; Department of Clinical and Experimental Medicine; University Federico II; Naples Italy
8. Department of Internal Medicine and Medical Specialties; Rheumatology Division - “La Sapienza”; University of Rome; Rome Italy