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Vimentin expression in ductular reaction cells. (A–C) Dual immunofluorescence for CK7 (green, A) and vimentin (red, B) in a sample of a patients with chronic HCV-hepatitis, showing that reactive ductular cells express vimentin (merged, C), a late mesenchymal marker, thus indicating their engagement in a phenotypic transitional process; ×200 final magnification.
