This is the reference list from the PRISMA Statement 2009 paper, and refers to the citations made over the various pages in the PRISMA website.
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39. Schunemann HJ, Jaeschke R, Cook DJ, Bria WF, El-Solh AA, et al. for the ATS Documents Development and Implementation Committee (2006) An official ATS statement: Grading the quality of evidence and strength of recommendations in ATS guidelines and recommendations. Am J Respir Crit Care Med 174: 605-614.