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Immunohistochemistry of VEGF and BMP-2. Tissue samples underwent immunohistochemistry staining to detect the expression of VEGF and BMP-2 at different time points following treatment with danshen and MSCs alone or in combination. Representative images are presented (magnification, ×100). BMP-2, bone morphogenetic protein-2; VEGF, vascular endothelial growth factor; MSC, mesenchymal stem cell.
