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Percentage of Cell Viability in Breast Cancer Cell Lines Measured by MTT Assay in a) MCF-7 b) MDA-MB-468 and c) SKBR-3 cell lines 72 hours after exposure to hTERT siRNA and Doxorubicin. The difference between means was carried out using one-way analysis of variance (ANOVA). Data are shown as mean ± SD (error bar) of 3 experiments, * data are significant at P < 0.05
