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. 2023 Mar 8;57(6):607–616. doi: 10.1177/15385744231162924

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© The Author(s) 2023

This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 6. — Effect size meta-analysis of change in ulcer area at 12 weeks. SMD >0 favours HBOT, SMD <0 favours control. In this case the pooled effect is statistically significant.