User-centered design of a gamified mental health app for adolescents in sub-Saharan Africa: multicycle usability testing study (JMIR Formative Research, 2023)

(untitled) - Pozuelo, JR; Moffett, BD; Davis, M; Cohen, H; Craske, MG; Maritze, M; Makhubela, P; Nabulumba, C; Sikoti, D; Kahn, K; Sodi, T; van Heerden, A; et al.