Mapping multilevel barriers impacting the performance of Ethiopia's Community-Based Health Extension Program: A scoping review. - Godana, Kora Tushune; Birhanu, Zewdie; Nemera, Gugsa; Eba, Kasahun; Balcha, Fikadu; Assefa, Yibeltal; V. Damme, Wim; Decat, Peter (PLoS ONE, 2026)