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. 2019 Apr 1;25(4):255–264. doi: 10.1177/1753425919839125

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© The Author(s) 2019

Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.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 3. — (a) Correlation of SF PACAP levels with NPS in knee OA patients. (b) Correlation of SF PACAP levels with WOMAC OKS in knee OA patients. (c) Correlation of SF PACAP levels with AKS knee score in knee OA patients and (d) Correlation of SF PACAP levels with AKS function score in knee OA patients.