RT Journal Article SR Electronic T1 Airwaves JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 95 OP 95 VO 63 IS 2 A1 Wisia Wedzicha, Editor-in-Chief YR 2008 UL http://thorax.bmj.com/content/63/2/95.2.abstract AB