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. 2009 Apr 12;69(2):374–379. doi: 10.1136/ard.2009.107805

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© Moore et al 2010

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Numbers needed to treat (NNT) compared with placebo for five active drugs over 12 weeks of treatment using various levels of reductions in pain intensity (PR) over baseline.