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Detection of apoptotic cells in xenograft tumor tissue using terminal deoxynucleotidyl transferase dUTP nick end labeling assay. (A) Tissues from the tumors of the control group and tumors treated with (B) puerarin (50 mg/kg/day), (C) 5-FU (10 mg/kg/day) and (D) 5-FU (10 mg/kg/day) + puerarin (50 mg/kg/day). 5-FU, 5-fluorouracil.
