Fig. 1

Kaplan–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 ratio
Kaplan–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 ratio