RT Journal Article SR Electronic T1 CORRECTION JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 743 OP 743 DO 10.1136/thx.2005.051961corr1 VO 62 IS 8 YR 2007 UL http://thorax.bmj.com/content/62/8/743.abstract AB