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. 2020 Jun 30;48(6):0300060520936179. doi: 10.1177/0300060520936179

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© The Author(s) 2020

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work 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 2. — Forest plot comparing pain intensity between the trial and control groups. a. Overall analysis. b. Subgroup analysis based on the intervention. c. Subgroup analysis based on the observation period. d. Subgroup analysis based on the quality assessment.