Dosimetric comparison of the shoulder region between paired photon and proton plans in breast cancer patients. - Liang Y; Verhoeven K; Vilches-Freixas G; Bosma SCJ; Canters R; Froklage FE; Houben R; Maduro JH; Overbosch J; Penninkhof JJ; Sattler MGA; Simons JM; et al. (Technical innovations & patient support in radiation oncology, 2026)