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. 2016 Feb 18;35:6. doi: 10.1186/s40101-016-0088-4

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© Fujiwara et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. 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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Fig. 3 — Mean speed of CoPap fluctuation during floor oscillations. Filled circles and solid lines indicate the average and standard deviation, respectively, in each trial until the fifth trial. Dashed lines indicate the mean speed of CoPap fluctuation over all trials for each subject. *p < 0.05; **p < 0.01; ***p < 0.001