RT Journal Article SR Electronic T1 HOW MUCH DOES THE ENVIRONMENT CONTRIBUTE TO CANCER? JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 150 OP 156 DO 10.1136/oem.60.2.150 VO 60 IS 2 A1 Lesley Rushton YR 2003 UL http://oem.bmj.com/content/60/2/150.abstract AB