TODD, Paul. Pulsed High-Intensity Roentgen Rays: Inactivation of human cells cultured in vitro and limitations on usefulness in radiotherapy. Acta Oncologica, [S. l.], v. 7, n. 1, p. 22–26, 1968. DOI: 10.3109/02841866809133174. Disponível em: https://medicaljournalssweden.se/actaoncologica/article/view/34224. Acesso em: 21 feb. 2025.