RT Journal Article SR Electronic T1 Author's reply JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 699 OP 699 DO 10.1136/oem.52.10.699-a VO 52 IS 10 A1 Finkelstein, Murray YR 1995 UL http://oem.bmj.com/content/52/10/699.2.abstract AB