Reference. Acta Oncologica, [S. l.], v. 30, n. Supp 1, p. 94–95, 1991. DOI: 10.3109/02841869109090092. Disponível em: https://medicaljournalssweden.se/actaoncologica/article/view/32762. Acesso em: 18 may. 2026.