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Fig. 3
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Concentrations of platelet-derived growth factor-BB (PDGF-BB) (A), and cytokines, including IL-1 receptor antagonist (IL-1 Ra) (B), soluble TNF receptor type II (sTNF-RII) (C), and IL-1β (D). Data are presented as the mean ± SD (**p < 0.01, *p < 0.05).