RT Journal Article SR Electronic T1 An improved estimate of the quantitative relationship between polycyclic hydrocarbons and lung cancer JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 716 OP 717 DO 10.1136/oem.2009.047720 VO 66 IS 11 A1 Dario Mirabelli YR 2009 UL http://oem.bmj.com/content/66/11/716.abstract AB