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(a) Transmission electron microscopy (TEM) imaging of cross sections of the intact, resected distal nerve stump, autograft and neurograft are shown (top, scale bar 10 μm). Greater detail of the myelin layers including of the neurograft are shown (bottom, scale bar 200 nm). (b) Average myelin thickness and axon diameter are shown for each group (* indicates statistical significance, p<0.05).
