[1] Sapienza Univ Rome, Rheumatol Unit, Dept Internal Med & Med Specialties, Rome, Italy
[2] ASST Gaetano Pini, Div Rheumatol, Milan, Italy
[3] IRCCS, Unit Immunol Rheumatol Allergy & Rare Dis UnIRAR, San Raffaele Sci Inst, Milan, Italy
[4] Univ Perugia, Rheumatol Unit, Dept Med, Perugia, Italy
[5] Univ Florence, Dept Expt & Clin Med, Florence, Italy
[6] AOU Careggi, Rheumatol Sect, Immunoallergol Unit, Florence, Italy
[7] Univ Cattolica Sacro Cuore, Inst Rheumatol & Affine Sci, Div Rheumatol, Rome, Italy
[8] Univ Siena, Res Ctr Syst Autoinflammatory Dis, Siena, Italy
[9] Univ Siena, Behcets Dis Clin Surg & Neurosci, Dept Med Sci Surg & Neurosci, Siena, Italy
[10] Univ Udine, Rheumatol Clin, Dept Med & Biol Sci, Udine, Italy
[11] Univ Vita Salute San Raffaele, Dept Internal Med, Milan, Italy
[12] Univ Cattolica Sacro Cuore, Inst Internal Med, Period Fever Res Ctr, Fdn Policlin A Gemelli, Rome, Italy
[13] Univ Aquila, Div Rheumatol, Dept Biotechnol & Appl Clin Sci, Laquila, Italy
[14] Univ Brescia, Rheumatol & Clin Immunol, Spedali Civili & Dept Clin & Expt Sci, Brescia, Italy
[15] Univ Bari, Interdisciplinary Dept Med, Rheumatol Unit, Bari, Italy
[16] Univ & AOU Cagliari, Rheumatol Unit, Dept Med Sci, Cagliari, Italy
[17] Univ Pavia, IRCCS, Dept Rheumatol, Policlin San Matteo Fdn, Pavia, Italy
[18] Univ Pisa, Dept Clin & Expt Med, Rheumatol Unit, Pisa, Italy
[19] Univ Verona, Dept Med, Rheumatol Unit, Verona, Italy
[20] Univ Padua, Dept Med DIMED, Rheumatol Unit, Padua, Italy