[1] Univ Pavia, Dept Internal Med & Med Therapeut, Med Sch, I-27100 Pavia, Italy
[2] IRCCS Policlin San Matteo, Cardiothorac & Vasc Dept, Unit Resp Dis, I-27100 Pavia, Italy
[3] Univ Turin, Dept Med Sci, I-10124 Turin, Italy
[4] FPO IRCCS Candiolo Canc Inst, Pathol Unit, Str Provinciale 142, I-10060 Candiolo, Italy
[5] Univ Piemonte Orientale, Dept Pharmaceut Sci, Largo Donegani 2-3, I-28100 Novara, Italy
[6] Univ Pavia, Dept Surg Pediat & Diagnost Sci, I-27100 Pavia, Italy