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. 2023 Mar 29;13:5120. doi: 10.1038/s41598-023-32223-1

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Change in the time from an EMS call to hospital arrival during the pre and post COVID-19 pandemic periods. The gray area indicates the monthly number of COVID-19 patients in Sapporo city. (A) Time from EMS call to hospital arrival. (B) Time from EMS call to hospital arrival longer than 50 min. COVID-19 coronavirus disease-2019, EMS emergency medical services.