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. 2017 Sep 27;13:1744806917733637. doi: 10.1177/1744806917733637

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© The Author(s) 2017

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 1. — NP implantation decreases PWT and PWL of ipsilateral hindpaws of rats. (a) PWT in ipsilateral hindpaws of NP group decrease significantly on day 2, 5, 10, 15, and 20 after surgery compared with sham group (n = 12/group, *P < 0.05, **P < 0.01). PWT in contralateral hindpaws are not different between NP and sham group. (b) PWL in ipsilateral hindpaws of NP group decrease significantly on day 5, 10, 15, and 20 after surgery compared with sham group (n = 12/group, *P < 0.05). PWL in contralateral hindpaws are not different between NP and sham group. NP: nucleus pulposus; PWL: paw withdrawal latency; PWT: paw withdrawal threshold.