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. 2017 Jul 3;4:19. doi: 10.1186/s40621-017-0116-9

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 3 — National estimate of soccer-related injury incidence for National Electronic Injury Surveillance System (NEISS), High School Reporting Information Online (HS RIO), and National Collegiate Athletic Association Injury Surveillance Program (NCAA-ISP), by month, 2004–2013^a.

NOTE: Y-Axis for both scales differ. Data collection for HS RIO and NCAA-ISP occurred only during the school-sanctioned soccer seasons, so the lines are not continuous.

^a National estimates were calculated by applying statistical weights provided by the US Consumer Products Safety Commisions’s National Electronic Injury Surveillance System to actual case counts