They include the ratio of PD-L1-stained tumor cells (TCs) to the total number of viable TCs, the combined positive score (CPS) which is defined as the total number of PD-L1-stained cells (including TCs, lymphocytes, and macrophages) divided by the number of all viable TCs, then multiplied by 100 (94). Here, CD274 is linked to neoplasm.