RT Journal Article SR Electronic T1 Key Topics in Respiratory Medicine JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 285 OP 285 DO 10.1136/oem.57.4.285a VO 57 IS 4 A1 DANIEL CHAMBERS YR 2000 UL http://oem.bmj.com/content/57/4/285.2.abstract AB