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. 2015 Sep 2;16:233. doi: 10.1186/s12891-015-0683-2

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© Veronesi et al. 2015

Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 2 — Histological images of the osteochondral lesions: a Group 1 – scaffold; b Group 2 – scaffold seeded with BMC; c Group 3 – scaffold and PEMFs; d Group 4 –scaffold seeded with BMC and PEMFs. H = Hypocellularity; C = Chondrocyte cluster. Safranin-O/Fast Green staining. Magnification of 4X