Figure 3.

TNFα concentration in articular lavage fluid 24 hours after induction of papain injuries. Comparison of mean and standard deviation of the concentration of tumor necrosis factor alpha (TNFα) obtained by enzyme-linked immunosorbent assay in articular lavage fluid 24 hours after induction of papain injuries. *P < 0.05 and **P < 0.001, Tukey's test compared with the control group. ##P < 0.001, Tukey's test compared with the injury group. ξP < 0.05, Tukey's test compared with the 50 mW low-level laser therapy (LLLT) group.

Alves et al. Arthritis Research & Therapy 2013 15:R116   doi:10.1186/ar4296
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