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. 2020 Jan 3;24:2. doi: 10.1186/s40824-019-0180-z

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© The Author(s). 2019

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. 5 — Alizarin Red staining of osteoblast cells seeded on porous PCL scaffolds maintained for (a) 14 and (b) 30 days in basal and osteogenic medium; Quantitative analysis of Alizarin Red staining in osteogenic (c) and basal (d) medium by measuring the optical density (OD); ns, # and $: non-significant; *: significant versus other scaffolds having the same sign (p < 0.01); (Black scale bar = 1 mm, White scale bar = 100 μm)