[1] Univ Trieste, Univ Hosp Cattinara, Dept Med Surg & Hlth Sci, Pulmonol Unit, I-34149 Trieste, Italy
[2] Univ Milan, Grad Sch, I-20149 Milan, Italy
[3] Univ Manchester, Fac Biol Med & Hlth, Div Musculoskeletal & Dermatol Sci, Manchester M6 8HD, England
[4] Salford Royal NHS Fdn Trust, Manchester M6 8HD, England
[5] Univ Piemonte Orientale UPO, Dept Translat Med, I-28100 Novara, Italy
[6] Univ Piemonte Orientale UPO, Ctr Autoimmune & Allerg Dis CAAD, I-28100 Novara, Italy
[7] Azienda Osped Univ, I-28100 Novara, Italy