Pharos: a mobile GIS application for network assessment and ground-truth mapping to support mHealth study design in low-resource settings. - Carson P. Moore; Natalie N. Robbins; Gladys Odhiambo; Kennedy Andiego; Meredith Odhiambo; Fredrick Rawago; Rosemary Musuva; Maurice Odiere; David Wright; Thomas Scherr (Int. J. Geogr. Inf. Sci., 2026)