Corrigendum to: Preferred reporting items for systematic reviews and meta-analyses: The PRISMA statement. International Journal of Surgery 2010;8:336–341

Original publication of the PRISMA statement in the International Journal of Surgery should have acknowledged that in order to encourage dissemination of the PRISMA statement, the article is freely accessible on bmj.com and has also been previously published in PLoS Medicine, Annals of Internal Medicine, Journal of Clinical Epidemiology, and Open Medicine. The authors jointly hold the copyright of this article. For details on further use, please see the PRISMA website (www.prisma-statement.org/).