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. 2019 Aug 12;24:28. doi: 10.1186/s40001-019-0387-4

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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. 1 — Histogram revealing the hemoglobin (Hb) drop over the first 5 days after total knee arthroplasty. Overall, no statistically significant difference (P = 0.763) was noted between the control group and the group of patients who had received tranexamic acid (TXA), although the TXA group showed significantly higher Hb levels on the first postoperative day (9.91 ± 0.6 g/dL vs 9.40 ± 1.1 g/dL; P = 0.006)