PT - JOURNAL ARTICLE AU - Andrew Bush AU - Claire Hogg TI - Authors' response AID - 10.1136/thoraxjnl-2012-201620 DP - 2012 May 01 TA - Thorax PG - 464--464 VI - 67 IP - 5 4099 - http://thorax.bmj.com/content/67/5/464.2.short 4100 - http://thorax.bmj.com/content/67/5/464.2.full SO - Thorax2012 May 01; 67