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. 2018 Apr 20;97(16):e0440. doi: 10.1097/MD.0000000000010440

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Copyright © 2018 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution-ShareAlike License 4.0, which allows others to remix, tweak, and build upon the work, even for commercial purposes, as long as the author is credited and the new creations are licensed under the identical terms. http://creativecommons.org/licenses/by-sa/4.0

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Numeric pain rating scale time courses. ^∗P < .05 when compared group with group R; ^†P < .05 when compared group with group D1; ^‡P < .05 when compared group with group D2. Time values indicated by RR through 36 h are as in Fig. 2.