PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/thoraxjnl-2013-204457.287.corr1 DP - 2014 Mar 01 TA - Thorax PG - 303--303 VI - 69 IP - 3 4099 - http://thorax.bmj.com/content/69/3/303.short 4100 - http://thorax.bmj.com/content/69/3/303.full SO - Thorax2014 Mar 01; 69