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. 2014 May 21;15:165. doi: 10.1186/1471-2474-15-165

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Copyright © 2014 Fan et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Toluidine blue staining and transmission electron micrographs at 12 weeks postoperatively. Toluidine blue staining (A-C, scale bar = 10 μm) and transmission electron micrographs (TEM, D-F, scale bar = 2 μm) at 12 weeks postoperatively in the ANG + SLC (A and D), ANG + BM-MSC (B and E) and isograft (C and F) groups. The isograft group showed numerous large well-myelinated axons. The ANG + SLC group also demonstrated a large number of mature axons, whereas the ANG + BM-MSC group displayed generally fewer, small fibers.