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. 2022 Dec 31;59(1):90. doi: 10.3390/medicina59010090

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© 2022 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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Monthly ED visit rate in 2020 compared to those in the control period. For the investigation of monthly trends from 2018 to 2020, monthly ED visit rates after ED visits for each month in 2020 were compared with the average numbers of the corresponding months in the control period. LAD = Low-acuity disease, SARI = Severe acute respiratory infection, AHS = Acute hemorrhagic stroke, AIS = Acute ischemic stroke, AMI = Acute myocardial infarction, CA = Cardiac arrest, ED = emergency department.