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. 2014 Nov 4;5:1226. doi: 10.3389/fpsyg.2014.01226

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Copyright © 2014 D’Imperio, Cavone and Petrone.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Boxplots for pitch level (in st) across Word frequency and Task. Data for female and male speakers are separately plotted in the left and right panel, respectively. The notch indicates the 95% confidence interval for comparing medians.