
Keywords: کارسینوم سلول سنگفرشی سر و گردن; SCCHN; squamous cell carcinoma of the head and neck; SEER; Surveillance, Epidemiology, and End Results; HPV; human papillomavirus; LA; locoregionally advanced; Gy; gray; RTOG; Intergroup Radiation Therapy Oncology Group; GORTEC; Groupe d'Oncologie Radioth