Fig. 1From: Prognostic stratification of oropharyngeal cancer patients in a betel nut chewing and low HPV areaKaplan Meier plot stratified cumulative survival by A p16 (p = 0.003), B PD-L1 CPS (p = 0.325), C p53 (p = 0.425), and D EGFR (p = 0.025), respectively. (Abbreviations CPS: combined positive score; EGFR: epidermal growth factor receptor; PD-L1: programmed cell death ligand 1)Back to article page