Fig. 1From: Geostatistical linkage of national demographic and health survey data: a case study of TanzaniaThe census of health facility overlaid with SPA sampled facility within the administrative boundaries of Iringa and Njombe (shaded with green and yellow color, respectively). The gray line denotes the boundary of districts (administrative level 2) within each region. The DHS clusters are denoted by red circlesBack to article page