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. 2020 Nov 18;12(5):820–828. doi: 10.1177/2192568220966330

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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 5. — (A) Pre- and postoperative JOA score and (B) JOA recovery rate in patients who developed postoperative progression of ACS after cervical posterior decompression surgery. Group P, patients with postoperative progression of ACS; Group non-P, patients without postoperative progression of ACS; JOA, Japanese Orthopedics Association; ACS, anterior cervical spondylolisthesis. **Indicates P < .01.