Clinical outcome of hospitalized COVID-19 patients in relation to COVID-vaccination status. BIRDEM Medical Journal, [S. l.], v. 16, n. 1, p. 3–8, 2026. DOI: 10.3329/birdem.v16i1.87560. Disponível em: https://www.banglajol.info/index.php/BIRDEM/article/view/87560. Acesso em: 29 jun. 2026.