Balancing adaptations and fidelity of implementation strategies to optimize primary healthcare in Ethiopia: Lessons from embedded implementation research. - Bogale, Biruk; Tadele Tiruneh, Gizachew; Damte Argaw, Mesele; Semahegn, Agumasie; Fesseha, Nebreed; Tesfaye, Chala; Teferi, Mikiyas; Tadesse, Hillina; Belete, Mebrie; Girma, Addis; Ayehu, Temesgen; Siraneh, Yibeltal; et al. (PLoS ONE, 2026)