Figure 4

Spatiotemporal clusters of AHC cases in Chongqing from 2004 to 2018. The spatiotemporal clusters were detected by SaTScan software (version 9.5 Martin Kulldorff, National Cancer Institute, Bethesda, MD, USA, https://www.satscan.org/). These maps generated by ArcGIS software (version 10.2 ESRI, Redlands, CA, USA, http://www.esri.com/software/arcgis/arcgis-for-desktop).