RT Journal Article SR Electronic T1 Cohort analysis finds that the proportion of people who meet high risk criteria for colorectal, breast or prostate cancer screening based on family history increases between age 30 and 50 JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 50 OP 51 DO 10.1136/ebm.2011.100190 VO 17 IS 2 A1 Harvey J Murff YR 2012 UL http://ebm.bmj.com/content/17/2/50.abstract AB