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Immunohistochemical analysis of the regenerated nerves 12 weeks after surgeryfrom middle cable (A) TC, (B) SHAM, (C) CHIT and (D) CZON.There is clearly more positive staining of the myelin sheath-associated protein S- 100 (arrows) within the periphery of nerve, indicating well organized structural nerve reconstruction in CZON compared to that of the Chitosan. Scale bar:10μm
