PD‐L1 high expression, PD‐L1 tumour cell expression score ≥ 50%; PD‐L1 positivity, PD‐L1 tumour cells expression score ≥ 1%; PD‐L1, programmed cell death‐ligand 1; UICC, Union for International Cancer Control. This evidence concerns the gene CD274 and neoplasm.