[1] Univ Perugia, Dept Expt Med, I-06132 Perugia, Italy
[2] Univ Udine, Dept Med & Biol Sci, I-33100 Udine, Italy
[3] Ist Sci San Raffaele, Div Genet & Cell Biol, European Inst Res Cyst Fibrosis, I-20132 Milan, Italy
[4] Federico II Univ Naples, Dept Translat Med Sci, Pediat Unit, Reg Cyst Fibrosis Ctr, I-80131 Naples, Italy
[5] Univ Perugia, Dept Med, I-06132 Perugia, Italy
[6] Ludwig Inst Canc Res, Brussels Branch, B-1200 Brussels, Belgium
[7] Telemat Univ, IRCCS, San Raffaele Pisana, I-00163 Rome, Italy
[8] Univ Tor Vergata, I-00163 Rome, Italy
[9] Univ Piemonte Orientale, Dept Hlth Sci, I-28100 Novara, Italy