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. 2021 Mar 31;15:650118. doi: 10.3389/fnbot.2021.650118

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Copyright © 2021 Ezaki, Kadone, Kubota, Abe, Shimizu, Tan, Miura, Hada, Sankai, Koda, Suzuki and Yamazaki.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Peak joint angles | A, C, H is stands for acute, chronic, and healthy, respectively. Blue and red bars represent pre and post HAL intervention, respectively. **P < 0.01, *P < 0.05, and no sign means P > 0.05.