RT Journal Article SR Electronic T1 Clinical trials in idiopathic pulmonary fibrosis: a framework for moving forward JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1446 OP 1448 DO 10.1183/09031936.00092713 VO 42 IS 6 A1 David J. Lederer YR 2013 UL http://erj.ersjournals.com/content/42/6/1446.abstract AB