Fig. 1

Correlation between the number of biopsies and accordance rate. a Comparison of the accordance rate of PD-L1 expression between biopsy and resected samples according to the number of biopsies. *p < 0.05. b Comparison of the accordance rate of PD-L1 expression between biopsy and resected samples according to single or multiple biopsies. *p < 0.05. c Distribution of PD-L1 expression evaluated by biopsy according to single or multiple biopsies