Fig. 4From: Treatment patterns and survival outcomes of advanced hypopharyngeal squamous cell carcinomaKaplan–Meier analysis of OS rates in patients with stage IVA HPSCC. a Age < 65 years. b Age ≥ 65 years. c T1–T3 classification. d T4 classification. e N0–N1 classification. f N2 classificationBack to article page