RT Journal Article SR Electronic T1 Orlistat reduces weight but its cost–effectiveness remains unclear JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP ebnurs-2012-100958 DO 10.1136/eb-2012-100958 A1 Lennert Veerman YR 2012 UL http://ebn.bmj.com/content/early/2012/11/23/eb-2012-100958.abstract AB