[1] AUSL IRCCS Reggio Emilia, Rheumatol Unit, Reggio Emilia, Italy
[2] Univ Modena & Reggio Emilia AOU Modena, Scleroderma Unit, Rheumatol, VIA POZZO 71, I-41100 Modena, Italy
[3] AUSL IRCSS Reggio Emilia, Pneumol Unit, Reggio Emilia, Italy
[4] Univ Modena & Reggio Emilia, Dept Med & Surg Sci Children & Adult, Resp Dis Unit, Pneumol, Reggio Emilia, Italy
[5] Univ Modena & Reggio E, Policlin Modena, Dept Med & Surg Sci Children & Adult, Rheumatol Unit, Via Pozzo 71, I-41100 Modena, Italy