Additional file 4.

Figure S3. Means and variances of differentially expressed genes from the uncorrected data set (DEG_woBC) in RA (a) and OA (b) patients with (red dots) or without BC (blue dots); there are generally only marginal changes of the means, but moderate to substantial reductions of the variances.

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Kupfer et al. BMC Medical Genomics 2012 5:23   doi:10.1186/1755-8794-5-23