RT Journal Article SR Electronic T1 Lung function effects of chronic exposure to air pollution JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 645 OP 646 DO 10.1136/thx.2009.115071 VO 64 IS 8 A1 Sunyer, Jordi YR 2009 UL http://thorax.bmj.com/content/64/8/645.abstract AB