Barriers to digital health implementation in low- and middle-income countries: a narrative review. - Olayiwola, Qudus Bayonle; Sanusi, Oluwatoyin Maryam; Amoo, Godwin Samuel; Agboola, Ogooluwa Joshua; Adeyemi, Jimoh Abduljeleel; Suleiman, Hazanah Adebola; Ibrahim, Mukhtar Abimbola; Hassan, Toheeb Adetoyese (Discover Public Health, 2026)