RT Journal Article SR Electronic T1 Monitoring occupational diseases: response JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 692 OP 693 DO 10.1136/oem.58.11.692 VO 58 IS 11 A1 A SPENCE A1 J HODGSON A1 J OSMAN YR 2001 UL http://oem.bmj.com/content/58/11/692.abstract AB