Outcomes after (chemo)radiotherapy for anal cancer - A nationwide cohort study. - Deijen CL; Berbée M; Geijsen ED; Neelis KJ; Wee L; Bakker-Van der Jagt MAB; Boer AH; Ceha HM; Cnossen JS; Intven MPW; Leseman-Hoogenboom MM; Mulder-Ebrahimi G; et al. (Clinical and translational radiation oncology, 2026)