NORLUND, Anders. Costs of Radiotherapy. Acta Oncologica, [S. l.], v. 42, n. 5-6, p. 411–415, 2003. DOI: 10.1080/02841860310011140. Disponível em: https://medicaljournalssweden.se/actaoncologica/article/view/26856. Acesso em: 17 may. 2026.