Fig. 1From: Efficacy and safety of thoracic radiotherapy in extensive-stage small-cell lung cancer patients receiving first-line immunotherapy plus chemotherapy: a propensity score matched multicentre retrospective analysisKaplan–Meier curves of (A) PFS and (B) OS between ES-SCLC patients in TRT or non-TRT groups. PFS, progression-free survival; OS, overall survival; TRT, thoracic radiotherapy; CI, confidence interval; HR, hazard ratioBack to article page