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Intragroup comparisons of MIF concentrations in GCF, saliva, and serum. Data are expressed as mean ± standard error. CP: chronic periodontitis; GCF: gingival crevicular fluid; ng: nanogram; MIF: macrophage migration inhibitory factor; mL: milliliters. Intragroup comparisons were made ∗saliva vs GCF, ∗∗ saliva vs serum and ∗∗∗GCF vs serum; ∗: p-value of <0.05 was considered statistically significant.
