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Expressions of VEGFR-2, CD31, and CD34 in a tumor section. Strong positive staining for VEGFR-2, CD31, and CD34 was found in cancer cells (Immunohistochemical staining, 400× magnification). VEGFR-2 = vascular endothelial growth factor receptor 2; CD31 = cluster of differentiation 31; CD34 = cluster of differentiation 34.
