Fig. 4From: Radiotherapy for geriatric head-and-neck cancer patients: what is the value of standard treatment in the elderly?Kaplan-Meier curves demonstrating OS of HNSCC patients treated by radiotherapy (blue line) or chemoradiotherapy (red line). a, b Elderly HNSCC patients aged 65–74 years (a) or ≥ 75 years (b) with definitive treatment. c, d Elderly HNSCC patients with 65–74 years (c) or ≥ 75 years (d) treated in an adjuvant settingBack to article page