Reply to Kamal Kant Sahu's Letter to the Editor re: Veerle H. Groen, Karin Haustermans, Floris J. Pos, et al. Patterns of Failure Following External Beam Radiotherapy With or Without an Additional Focal Boost in the Randomized Controlled FLAME Trial for Localized Prostate Cancer. Eur Urol. In press. https://doi.org/10.1016/j.eururo.2021.12.012.