PRISMA statement.

  title={PRISMA statement.},
  author={David Moher and Douglas G. Altman and Alesandro Liberati and Jennifer Marie Tetzlaff},
  volume={22 1},
          128; author reply 128
To the Editor: In their recent commentary Takkouche and Norman seriously misrepresent the PRISMA guideline for reporting systematic reviews and meta-analyses. They state that PRISMA “demand s the prior registration of the protocol of any systematic review and meta-analysis, requiring that this protocol should be made accessible before any hands-on work is done.” No such demands are made in PRISMA. Item 5 of the checklist asks authors to “Indicate if a review protocol exists, if and where it can… 

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