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. 2014 Jun 12;11:26. doi: 10.1186/1550-2783-11-26

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Copyright © 2014 Russell et al.; licensee BioMed Central Ltd.

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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Absolute change in performance time for the responders (n = 5) and non-responders (n = 5) comparing acute (ACU) versus acute placebo (PLC-A) supplementation trials. Performance was significantly different in the ACU versus PLC-A (P < 0.05). Each line represents a different swimmer.