Figure 1.

Changes in serum levels of (a) cortisol, (b) interleukin-6 (IL-6), and (c) tumor necrosis factor-alpha (TNF-α) over the course of the session. Data are presented as mean ± 95% confidence interval. RA, rheumatoid arthritis.

Edwards et al. Arthritis Research & Therapy 2009 11:R61   doi:10.1186/ar2684
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