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. 2022 Feb 23;12:3063. doi: 10.1038/s41598-022-06716-4

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Trends in the number of people at 12 sites, the period of emergency declarations and the period of waves. Only the trend component of the number of people at 12 sites (thin lines) and the period of emergency of declaration (thick blue line) and wave (thick red line) are shown.