Radiation dose absorbed by the operator using portable dental x-ray machines: An integrative literature review. Research, Society and Development, [S. l.], v. 10, n. 9, p. e48310918082, 2021. DOI: 10.33448/rsd-v10i9.18082. Disponível em: https://rsdjournal.org/rsd/article/view/18082. Acesso em: 5 dec. 2025.