The use of opioids in oncologic palliative care: A literature review. Research, Society and Development, [S. l.], v. 13, n. 6, p. e2413645987, 2024. DOI: 10.33448/rsd-v13i6.45987. Disponível em: https://rsdjournal.org/rsd/article/view/45987. Acesso em: 23 feb. 2026.