30‑Day All‑Cause Mortality Rate amongst Older Patients Admitted to the Medical Ward of a Tertiary Hospital in Nigeria. Nigerian Journal of Health Sciences, [S. l.], v. 20, n. 1, p. 10–16, 2023. Disponível em: https://nigerianhsjournal.ng/njhs/article/view/40. Acesso em: 17 jun. 2026.