RT Journal Article SR Electronic T1 Airwaves JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 95 OP 95 DO 10.1136/thorax.58.2.95-a VO 58 IS 2 A1 Wedzicha, Wisia YR 2003 UL http://thorax.bmj.com/content/58/2/95.2.abstract AB