Influence of vitamin B12 and folic acid on cognitive disorders in the elderly. Research, Society and Development, [S. l.], v. 9, n. 1, p. e38911553, 2020. DOI: 10.33448/rsd-v9i1.1553. Disponível em: https://rsdjournal.org/rsd/article/view/1553. Acesso em: 5 dec. 2025.