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Light micrographs of Toluidine blue-stained common peroneal semi-thin sections for the different groups at 12 weeks. (a) Healthy nerve; (b) Axonotmesis; (c) Neurotmesis + EtE; (d) Neurotmesis + NGC. Scale bars: first column = 100 μm; second and third columns = 40 μm; fourth column = 20 μm.
