RT Journal Article SR Electronic T1 Review: healthcare decision aids improve knowledge, decrease decisional conflict, and increase active participation JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 45 OP 45 DO 10.1136/ebn.3.2.45 VO 3 IS 2 YR 2000 UL http://ebn.bmj.com/content/3/2/45.abstract AB