[1] San Carlo Hosp Potenza, Rheumatol Dept Lucania, Potenza, Italy
[2] Madonna della Grazie Hosp Matera, Matera, Italy
[3] Misericordia & Dolce Hosp, Div Rheumatol, Prato, Italy
[4] Univ Naples Federico II, Gastroenterol Unit, Naples, Italy
[5] Univ Cattolica Sacro Cuore, IBD Unit, I-00168 Rome, Italy
[6] Univ Bologna, S Orsola Malpighi Hosp, Dept Med & Surg Sci, IBD Unit, I-40126 Bologna, Italy
[7] AO Osped Riuniti Villa Sofia Cervello, IBD Unit, Palermo, Italy
[8] Ist Ricovero & Cura Carattere Sci, Azienda Osped ASMN, Dept Internal Med, Rheumatol Unit, Reggio Emilia, Italy
[9] Univ Naples Federico II, Dept Clin & Expt Med, Rheumatol Unit, Naples, Italy
[10] Univ Milan, Dept Biomed Sci Hlth, IRCCS Policlin San Donato, Gastroenterol & Gastrointestinal Endoscopy Unit, Milan, Italy