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. 2015 Feb 3;17(1):21. doi: 10.1186/s13075-015-0533-5

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© Kelley et al. 2015

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 cited. 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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Funnel plot for changes in depressive symptoms. Small-study effects are apparently present given the lack of results in the lower right section of the funnel plot.