PT - JOURNAL ARTICLE ED - BMJ Publishing Group Ltd and British Thoracic Society TI - CORRECTIONS AID - 10.1136/thx.2007.087999corr1 DP - 2008 Sep 01 TA - Thorax PG - 844--844 VI - 63 IP - 9 4099 - http://thorax.bmj.com/content/63/9/844.2.short 4100 - http://thorax.bmj.com/content/63/9/844.2.full SO - Thorax2008 Sep 01; 63