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. 2019 May 27;13:45. doi: 10.1186/s13036-019-0168-1

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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. 3 — Immunohistochemistry staining of FGF-R1 (a, c: DAPI; b, d: marker), FGF-R2 (e, g: DAPI; f, h: marker), FGF-1 (i, k: DAPI; j, l: marker), and FGF-2 (m, o: DAPI; n, p: marker) for non-calcified and calcified valve leaflets. Scale bar = 50 μm