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Effect of Tan IIA on KB cell proliferation. KB cells were treated with different concentrations of Tan IIA (0, 5, 10, 20, and 25 μg/mL) for 24, 48, and 72 hours. The cell cytotoxicity and viability were detected by SRB colorimetric assay. Values are the mean ± SD of 3 independent experiments. ∗ indicates P < 0.05.
