Comparative Study of the Use of Bismuth Shielding on Head Computed Tomography Scans Using Phantoms. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 8, n. 1B (Suppl.), 2020. DOI: 10.15392/bjrs.v8i1B.936. Disponível em: https://bjrs.org.br/revista/index.php/REVISTA/article/view/936.. Acesso em: 22 jul. 2024.