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Revisiting this article I noticed that the labelling at the bases of
the scattergram is correct for the first two sets of data, but not for the
grip strength data, where the rating scale works in reverse. For pain and
joint swelling less is better, for grip strength more is better, so the
caption at the bottom "steroids better...NSAID better" should be the other
Apologies if you have published a correction or explanation, but I
don't keep my backcopies because your website is so good.