RT Journal Article SR Electronic T1 Effect of mild emphysema on left heart function JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 970 OP 970 DO 10.1136/thx.2010.145599 VO 65 IS 11 A1 Mallia-Milanes, Brendan YR 2010 UL http://thorax.bmj.com/content/65/11/970.abstract AB