RT Journal Article SR Electronic T1 You say goodbye, and I say hello! JF European Respiratory Review JO EUROPEAN RESPIRATORY REVIEW FD European Respiratory Society SP 265 OP 266 DO 10.1183/09059180.00006112 VO 21 IS 126 A1 Marc Humbert YR 2012 UL http://err.ersjournals.com/content/21/126/265.abstract AB