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. 2020 Feb 8;1(3):173–182. doi: 10.1002/emp2.12012

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© 2020 The Authors. JACEP Open published by Wiley Periodicals, Inc. on behalf of the American College of Emergency Physicians.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Source: Center for Disease Control and Prevention, National Center for Health Statistics: U.S. Department of Health and Human Services. “National Hospital Ambulatory Medical Care Survey: 2008‐2015 Emergency Department Summary Tables”