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ML induces apoptosis in tumor xenografts and decreases cell proliferation when combined with cisplatin. (A) Representative photomicrographs of tumor xenograft sections from each treatment group stained for Ki‐67 (brown) and cleaved caspase 3 (red) show at 50× and 200× magnifications. Scale bars are 500 μm (top) and 100 μm (bottom). (B) Quantification of Ki‐67 staining (automated arbitrary units) and cleaved caspase staining (number of positive nuclei per HPF). *p < 0.05, **p < 0.01.
