Association between vitamin D deficiency and cognitive function in the elderly patient in a tertiary care hospital, Bangladesh. Bangladesh Journal of Medicine, [S. l.], v. 37, n. 1, p. 41–51, 2026. DOI: 10.3329/bjm.v37i1.86716. Disponível em: https://www.banglajol.info/index.php/BJMED/article/view/86716. Acesso em: 26 jun. 2026.