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Microscopic images of immunohistochemical staining. Sirtuin 1 (SIRT1) (A, B), deleted in breast cancer 1 (DBC1) (C, D), cytoplasmic β-catenin (E), membranous β-catenin (F), and p53 (G, H). The left panel shows positive staining (A, C, E, G) and right panel shows negative staining (B, D, F, H). Nuclear staining patterns are evident in SIRT1, DBC1, and p53 staining. β-Catenin figures show cytoplasmic staining (E) and membranous staining (F).
