The Field-in-field technique in esophageal cancer radiotherapy. European Journal of Oncology and Environmental Health, [S. l.], v. 22, n. 2, p. 71–75, 2017. Disponível em: https://mattioli1885journals.com/index.php/EJOEH/article/view/6200.. Acesso em: 18 jul. 2024.