RT Journal Article SR Electronic T1 Aspirin and asthma: barking up the right tree? JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 485 OP 486 DO 10.1136/thx.2008.096198 VO 63 IS 6 A1 Clayton, Andrew A A1 Forrester, Douglas L A1 Knox, Alan J YR 2008 UL http://thorax.bmj.com/content/63/6/485.abstract AB