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. 2014 Dec 15;22:43. doi: 10.1186/s12998-014-0043-6

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© Gomes et al.; licensee BioMed Central Ltd. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Median (25% and 75% quartile) of median frequency (Hz) in right and left anterior temporal and masseter muscles during maximum voluntary clenching in each group (non-significant differences, p > 0.05; Kruskal-Wallis test).