We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleImpact of covert duplicate publication on meta-analysis: a case study.AuthorsTramèr, M R; Reynolds, D J; Moore, R A; McQuay, H JAbstractTo quantify the impact of duplicate data on estimates of efficacy.PublicationBMJ (Clinical research ed.), 1997, Vol 315, Issue 7109, p635ISSN0959-8138Publication typeJournal ArticleDOI10.1136/bmj.315.7109.635