RT Journal Article SR Electronic T1 What is a CI? JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 66 OP 66 DO 10.1136/ebnurs-2012-100802 VO 15 IS 3 A1 Jane Clarke YR 2012 UL http://ebn.bmj.com/content/15/3/66.abstract AB