Expert opinion : Radiotherapy in cutaneous squamous cell carcinoma: Recommendations from the DEGRO dermatooncology working group. - Hering K; Balermpas P; Rühle A; Trommer M; Elsayad K; Adeberg S; Vordermark D (Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2026)