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Box plots of serum levels (pg/mL) of cytokines MIP-1β, IL-18, GRO-α, MIF, SCF, SCGF-β, IL-2Rα, SDF-1α, and TRAIL for young children (1–6), children (7–17), and adults (≥18). Whiskers calculated adopting the Tukey method. Outliers not shown. *P < 0.05, **P < 0.01, ***P < 0.001: Kruskal-Wallis test followed by Dunn's multiple comparison test.
