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. 2015 Dec 30;6:260. doi: 10.1186/s13287-015-0263-2

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© Reppel et al. 2015

Open AccessThis 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. 4 — Relative expression of specific cartilage-related genes evaluated by quantitative RT-PCR during 28 days of chondrogenic induction. All results are expressed as mean ± standard error of the mean (n ≥ 3). *p < 0.05, **p < 0.01 and ***p < 0.001, day x vs day 3 for a same cell source. ^### p < 0.001, WJ-MSC vs BM-MSC for a same culture time. BM-MSC bone marrow-derived mesenchymal stromal/stem cells, COMP cartilage oligomeric matrix protein, COL collagen, WJ-MSC Wharton’s jelly-derived mesenchymal stromal/stem cells