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Cytotoxicity of LS-1 in SNU-C5/5-FU, SNU-C5/WT and HEL-299. The cytotoxicity of LS-1 on the cell lines was measured using the MTT assay. The data are presented as the mean value ± SD from three independent trials. * p < 0.05 and ** p < 0.01 compared with the control.
