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. 2022 Feb 22;10(2):23259671221075373. doi: 10.1177/23259671221075373

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© The Author(s) 2022

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Figure 3. — Monthly incidence of positive COVID-19 tests in 2020 (black line) with the estimated monthly number of sports-related emergency department (ED) visits in the United States expressed as a percentage of all US ED visits in 2018 (pink line), 2019 (orange line), and 2020 (purple line). The shaded area represents the 2020 COVID lockdown period.