RT Journal Article SR Electronic T1 Idiopathic pulmonary fibrosis: current challenges and future perspectives JF European Respiratory Review JO EUROPEAN RESPIRATORY REVIEW FD European Respiratory Society SP 103 OP 105 DO 10.1183/09059180.00001413 VO 22 IS 128 A1 Luca Richeldi YR 2013 UL http://err.ersjournals.com/content/22/128/103.abstract AB