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. 2015 Dec 10;3(12):2325967115620365. doi: 10.1177/2325967115620365

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© The Author(s) 2015

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License (http://www.creativecommons.org/licenses/by-nc-nd/3.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 4. — Rate of concussions by defensive players based on defensive alignment during the 2012 to 2014 National Football League regular seasons. Defensive players include safeties, linebackers, defensive tackles, defensive ends, and cornerbacks.