RT Journal Article SR Electronic T1 Ageing, smoking and oxidative stress JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 461 OP 462 DO 10.1136/thx.2005.053058 VO 61 IS 6 A1 J F Donohue YR 2006 UL http://thorax.bmj.com/content/61/6/461.abstract AB