RT Journal Article SR Electronic T1 INTRODUCTION JF European Respiratory Review JO EUROPEAN RESPIRATORY REVIEW FD European Respiratory Society SP 1 OP 1 DO 10.1183/09058180.05.00009400 VO 14 IS 94 A1 G. M. Verleden A1 M. Decramer A1 R. Gosselink A1 M. Demedts YR 2005 UL http://err.ersjournals.com/content/14/94/1.abstract AB