Among 103 patients, 30 patients (age median: 55.20 ± 11.05) with tumor cells expressing PD-L1 ≥ 50% were assigned into the high expression group, and 73 patients (age median: 54.48 ± 12.70) with expression scored < 50% were assigned to the low expression group. Here, CD274 is linked to neoplasm.