RT Journal Article SR Electronic T1 From the authors JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1137 OP 1137 DO 10.1183/09031936.00002708 VO 31 IS 5 A1 M. A. Kolodziej A1 L. Jensen A1 B. Rowe A1 D. Sin YR 2008 UL http://erj.ersjournals.com/content/31/5/1137.1.abstract AB