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Surgical field of Tachosil Group. (a) Fibroblasts cytoplasm is positive for anti-HIF-1α antibody (arrow). Immunohistochemistry anti-HIF-1α, PAP, 200×. (b) The cytoplasm and the nuclei of the fibroblasts are positive for anti-NF-kB-p65 antibody (arrow). Immunohistochemistry anti-NF-kB-p65, PAP, 200×. (A color version of this figure is available in the online journal.)
