RT Journal Article SR Electronic T1 Exposure assessment in epidemiological studies: what has to be considered when comparing job-exposure matrices? JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 850 OP 850 DO 10.1136/oemed-2012-101051 VO 69 IS 11 A1 Thomas Behrens A1 Dirk Taeger YR 2012 UL http://oem.bmj.com/content/69/11/850.2.abstract AB