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. 2021 Apr 13;9(4):457. doi: 10.3390/healthcare9040457

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Funnel plot for changes in lower-body bone mineral density in untrained adults after a training program based on soccer small-sided games compared to a passive control condition. White circles: observed studies.