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MTT assay after the addition of exogenous epidermal growth factor. Exogenous epidermal growth factor (EGF) (especially 0.1-10 ng/mL) significantly increased the proliferation indices of SNU-1196, SNU-1079, and SNU-245 cells. Statistical analyses were performed by one-way ANOVA. bP < 0.01 vs control. Data are representative of triplicate experiments.
