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Cytotoxicity of II-6s on human oral cells. The cytotoxicity of II-6s on human gingival epithelial cells (HGE), human oral keratinocytes (HOK), and macrophages RAW264.7 after treatment at indicated concentrations for 5 min (a, b, c) and 24 h (d, e, f), respectively. Data are represented as means ± SD
