RT Journal Article SR Electronic T1 A decision aid to support informed choice about bowel cancer screening in people with low educational level improves knowledge but reduces screening uptake JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 36 OP 37 DO 10.1136/ebn1142 VO 14 IS 2 A1 Christian von Wagner YR 2011 UL http://ebn.bmj.com/content/14/2/36.abstract AB