<i>In vitro</i> inhibitory effect of As₂O₃ on MUTZ-1 cells and SKM-1 cells proliferation.

<p>(<b>A</b>): MUTZ-1 cells were incubated with the indicated concentrations of As₂O₃ for 24 h, 48 h, and 72 h. (<b>B</b>): SKM-1 cells were incubated with the indicated concentrations of As₂O₃ for 12 h, 24 h, and 48 h. The MTT assay was performed in triplicate. The results are given as the means ± standard deviation (SD) of three independent experiments.