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Representative images of the CD31 and Ki-67 staining of tumor tissues. (A) Expression of vascular endothelial marker CD31 in tumors of different treatment groups. (B) Expression of proliferative marker Ki-67 in tumors of different treatment groups. Scale bar = 50 μm. Data are presented as mean ± SEM (n = 5). ∗∗∗P < 0.001, ∗∗∗∗P < 0.0001.
