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. 2014 Dec 20;55(3):418–426. doi: 10.1093/ilar/ilu042

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© The Author 2014. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs license (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Steps to be taken in a systematic review (SR) and meta-analysis (MA) of animal studies. Figure 1 is partly based on the general methods for Cochrane reviews (Higgins and Green 2008).