RT Journal Article SR Electronic T1 Guaiac based faecal occult blood testing for colorectal cancer screening: an obsolete strategy? JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 959 OP 960 DO 10.1136/gutjnl-2011-301810 VO 61 IS 7 A1 Young, Graeme P A1 Fraser, Callum G A1 Halloran, Stephen P A1 Cole, Steven YR 2012 UL http://gut.bmj.com/content/61/7/959.abstract AB