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. 2017 Dec 20;1(3):146–151. doi: 10.22603/ssrr.1.2017-0003

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Copyright © 2017 by The Japanese Society for Spine Surgery and Related Research

Spine Surgery and Related Research is an Open Access article distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view the details of this license, please visit (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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Figure 4. — The values of PW in each group.