RT Journal Article SR Electronic T1 Airwaves JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 885 OP 885 DO 10.1136/thx.2005.awnov VO 60 IS 11 A1 Wedzicha, Wisia YR 2005 UL http://thorax.bmj.com/content/60/11/885.2.abstract AB