RT Journal Article SR Electronic T1 Asthma in the Workplace. 2nd Edition JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 1071 OP 1071 DO 10.1136/thorax.55.12.1071 VO 55 IS 12 YR 2000 UL http://thorax.bmj.com/content/55/12/1071.abstract AB