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. 2020 Feb 21;11:78. doi: 10.1186/s13287-020-01609-7

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© The Author(s) 2020

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. 2 — a Phase-contrast inverted optical images of AKCs grown in keloid medium (control), HSF-CM and hWJSC-CM. b Viable AKCs cell counts assessed by Trypan blue staining for AKCs grown in keloid medium (control), HSF-CM and hWJSC-CM. Assesment of c cell viability (MTT) and d cell proliferation (BrdU) of AKCs grown in keloid medium (control), HSF-CM and hWJSC-CM at day 3. All values are represented as mean ± SEM of at least three independent experiments. p < 0.05 was considered as statistically significant