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A. HEC-1-A and ishikawa cells viability were measured by CCK-8 proliferation assay. Six replicates for each group and the experiment repeated three times. Data are mean±SEM. * P<0.05 compared with controls. B. Stable EC cells were injected subcutaneously into nude mice. Mean tumor volumes from six nude mice of each group are shown at different time points. * P<0.05 compared with controls.
