RT Journal Article SR Electronic T1 Traffic related air pollutants shorten life expectancy JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 57 OP 57 DO 10.1136/thorax.58.1.57 VO 58 IS 1 A1 A Bhowmik YR 2003 UL http://thorax.bmj.com/content/58/1/57.abstract AB