RT Journal Article SR Electronic T1 CORRECTION JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 458 OP 458 DO 10.1136/thx.2005.47803corr1 VO 61 IS 5 YR 2006 UL http://thorax.bmj.com/content/61/5/458.2.abstract AB