Fifty-one patients of patients were PD-L1 positive (PD-L1 was considered as positive if at least one of the following three criteria were met: at least 25% of tumor cells stained for PD-L1, at least 25% of immune cells (ICs) stained for PD-L1 if more than 1% of the tumor area contained ICs, or 100% of ICs stained for PD-L1 if no more than 1% of the tumor area contained ICs) (see Table 1 for PD-L1 positivity). This evidence concerns the gene CD274 and neoplasm.