Fig. 6

Association between the levels of B7 family ligands, TIL subsets and survival in SCLC. Kaplan-Meier graphical analysis of the 5-year overall survival in patients with SCLC from the Yale cohort. a Survival based on the expression of the immune ligands PD-L1 (left), B7-H3 (center) and B7-H4 (right). b Survival based on the expression of the TIL markers CD3 (left), CD8 (center) and CD20 (right). The respective log-rank P values are indicated in the chart