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CD-31 immunohistochemical staining in tumor and surrounding salivary gland tissues. (A) Transplanted oral squamous cell carcinoma cell (OSCC) tissue. (B) Salivary gland. Black arrows show CD-31-positive capillaries. (C) Number of CD-31-positive capillaries in tumor tissue (a) and normal salivary gland tissue (b). Data represent the mean ± standard deviation (SD). Statistical significances were determined by one-way analysis of variance (ANOVA). ** p < 0.01.
