RT Journal Article SR Electronic T1 Review: faecal occult blood test screening reduces risk of colorectal cancer mortality JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 15 OP 15 DO 10.1136/ebm.14.1.15 VO 14 IS 1 YR 2009 UL http://ebm.bmj.com/content/14/1/15.abstract AB