Acceptability and feasibility of a low-cost device for gestational age assessment in a low-resource setting: qualitative study - Koech, A; Musitia, PM; Mwashigadi, GM; Kinshella, M-LW; Vidler, M; Temmerman, M; Craik, R; von Dadelszen, P; Noble, JA; Papageorghiou, AT (JMIR Human Factors, 2022)