PT - JOURNAL ARTICLE ED - , TI - Correction AID - 10.1136/thoraxjnl-2016-209333.281corr1 DP - 2017 Mar 01 TA - Thorax PG - 235--235 VI - 72 IP - 3 4099 - http://thorax.bmj.com/content/72/3/235.short 4100 - http://thorax.bmj.com/content/72/3/235.full SO - Thorax2017 Mar 01; 72