Correction to: Radiat Oncol (2021) 16:163. https://doi.org/10.1186/s13014-021-01888-1

After publication of this article [1], the authors reported that the Funding information section was incomplete. The following should have been added: “This work was supported by CRUK (Grant Number C61974/A2429).”

The original article [1] has been updated.