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. 2019 Sep 10;10:991. doi: 10.3389/fphar.2019.00991

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Copyright © 2019 Joung, Lee, Cho, Lee, Ahn and Son

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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Changes of NRS before and after the treatment. (A) Total NRS. (B) Physical NRS. (C) Mental NRS. Independent t-test were used for group comparison. NRS, Numeric Rating Scale.