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. 2015 Sep 14;10(9):e0137722. doi: 10.1371/journal.pone.0137722

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© 2015 Beretta et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fig 1 — * indicates a significant difference between the PD and CG; # indicates a significant difference between the bipedal and tandem conditions; & indicates a significant difference between the bipedal and unipedal conditions.