PT - JOURNAL ARTICLE ED - , TI - Pulmonary puzzle AID - 10.1136/thx.2009.129890a DP - 2010 Apr 01 TA - Thorax PG - 353--353 VI - 65 IP - 4 4099 - http://thorax.bmj.com/content/65/4/353.short 4100 - http://thorax.bmj.com/content/65/4/353.full SO - Thorax2010 Apr 01; 65