RT Journal Article SR Electronic T1 Critical appraisal of cost-effectiveness and cost-utility studies in health care JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 99 OP 102 DO 10.1136/ebn.11.4.99 VO 11 IS 4 A1 Marta Soares A1 Jo C Dumville YR 2008 UL http://ebn.bmj.com/content/11/4/99.abstract AB