Figure 1. The (a) anterior–posterior and (b) right-lateral fields and (c, d) the isodose distributions of two axial planes in one patient with T2 stage prostate carcinoma irradiated by a rectangular four-field technique. B, Bladder; P, Prostate; R, Rectum; S, Seminal vesicle. From: Comparison of the Outcome and Morbidity for Localized or Locally Advanced Prostate Cancer Treated by High-dose-rate Brachytherapy Plus External Beam Radiotherapy (EBRT) Versus EBRT Alone Jpn J Clin Oncol. 2008;38(7):474-479. doi:10.1093/jjco/hyn056 Jpn J Clin Oncol | © The Author (2008). Published by Oxford University Press. All rights reserved 1