RT Journal Article SR Electronic T1 Purpose and procedure JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 34 OP 35 DO 10.1136/ebn.4.2.34 VO 4 IS 2 YR 2001 UL http://ebn.bmj.com/content/4/2/34.abstract AB