RT Journal Article SR Electronic T1 Evaluation of studies of treatment or prevention interventions JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 100 OP 102 DO 10.1136/ebn.3.4.100 VO 3 IS 4 A1 Nicky Cullum YR 2000 UL http://ebn.bmj.com/content/3/4/100.abstract AB