Fig. 2From: Validity of using mobile phone surveys to evaluate community health worker program in MaliGeographic Distribution of the In-Person Interviews across the Six Districts in Mali. This map was created using ArcGIS® Online by Esri (https://maps.arcgis.com). The geographic data (latitude and longitude) were collected by Open Data Kit (ODK) on the portable Android tablets during in-person interviewsBack to article page