Fig. 6.
Ammonia silver staining longitudinal section of the middle-regenerated nerve at 4 (A–D), 12 (E–H), 16 (I–L) weeks implantation: (A, E, I) Autograft; (B, F, J) PU; (C, G, K) 1%Gastrodin/PU; (D, H, L) 5%Gastrodin/PU.
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