Figure 3.

Interactions between the circadian clock and the immune system that contribute to disease pathogenesis in rheumatoid arthritis. GR, glucocorticoid receptor; PPAR, peroxisome proliferator activated receptor; ROR, retinoic acid related orphan receptor.

Gibbs and Ray Arthritis Research & Therapy 2013 15:205   doi:10.1186/ar4146
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