RT Journal Article SR Electronic T1 Refining the changes. Or, how to modify the shape, not the spirit JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1 OP 1 DO 10.1183/09031936.00074809 VO 34 IS 1 A1 A. T. Dinh-Xuan A1 V. Brusasco YR 2009 UL http://erj.ersjournals.com/content/34/1/1.abstract AB