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. 2022 Jan 31;10(1):23259671211061535. doi: 10.1177/23259671211061535

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© The Author(s) 2022

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

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Figure 3. — Forest plot of the effects of platelet-rich plasma (PRP) injection to graft tunnels on visual analog scale pain score. IV, inverse variance.