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. 2021 Apr 9;11:7811. doi: 10.1038/s41598-021-86188-0

Figure 10.

Figure 10

Hotspots and coldspots of confirmed COVID-19 cases at county-level in Shandong province (this graph is produced by using ArcGIS10.3. http://www.esri.com; The base map is from China Standard Map Service. http://bzdt.ch.mnr.gov.cn/).