[1] Fdn IRCCS Ca Granda Osped Maggiore Policlin Milan, Scleroderma Unit, Milan, Italy
[2] Univ Milan, Dept Clin Sci & Community Hlth, Milan, Italy
[3] Fdn Policlin Univ A Gemelli, IRCCS, UOC Reumatol, Rome, Italy
[4] ASST Gaetano Pini CTO, Div Clin Rheumatol, Milan, Italy
[5] Azienda Osped Univ Marche, Clin Med, Dept Internal Med, Ancona, Italy
[6] Marche Polytech Univ, Dept Clin & Mol Sci, Ancona, Italy
[7] IRCCS San Raffaele, Unit Immunol Rheumatol Allergy & Rare Dis, Milan, Italy
[8] Univ Vita Salute San Raffaele, Milan, Italy
[9] Fdn IRCCS Policlin San Matteo, Dept Rheumatol, Pavia, Italy
[10] Univ Pavia, Dept Internal Med & Therapeut, Chair Rheumatol, Pavia, Italy