RT Journal Article SR Electronic T1 Perspectives on research and practice in occupational and environmental health: the case of benzene JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 74 OP 75 DO 10.1136/oem.2009.048231 VO 67 IS 2 A1 Karl T Kelsey YR 2010 UL http://oem.bmj.com/content/67/2/74.abstract AB