Figure 1

Map showing the 20 clusters of each of the three study arms. The map was drawn by study investigators (M.A., E.D., J.C.) using Esri ArcGIS Pro 3.1 software (https://pro.arcgis.com/fr/pro-app/latest/get-started/download-arcgis-pro.htm), study and online data provided by GADM (https://gadm.org/download_country.html), and Natural Earth (https://www.naturalearthdata.com/).