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. 2020 Sep 16;11(7):1104–1120. doi: 10.1177/2192568220948814

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© The Author(s) 2020

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 11. — Forest plot of randomized controlled trials (RCTs) and nonrandomized prospective and retrospective studies comparing duration of surgery between the endscopic discectomy (ED) group and the microdiscectomy (MD) group.