RT Journal Article SR Electronic T1 Long-term computed tomographic changes in cystic fibrosis patients treated with ivacaftor JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 249 OP 252 DO 10.1183/13993003.01918-2015 VO 48 IS 1 A1 Guillaume Chassagnon A1 Dominique Hubert A1 Isabelle Fajac A1 Pierre-RĂ©gis Burgel A1 Marie-Pierre Revel YR 2016 UL http://erj.ersjournals.com/content/48/1/249.abstract AB