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. 2018 Sep 14;9:235. doi: 10.1186/s13287-018-0969-z

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© The Author(s). 2018

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 — Canadian Cardiovascular Society and New York Heart Association classes over 12-month follow-up. a Canadian Cardiovascular Society (CCS) class changes from 6 and 12 months to baseline (n = 8). b New York Heart Association (NYHA) class changes from 6 and 12 months to baseline (n = 10). Data presented as mean ± SD. **p ≤ 0.01, ***p ≤ 0.001. ^§§§p ≤ 0.001 vs baseline