CD274 and neoplasm: Tumor PD-L1 expression was associated with an increased PFS and OS by either digital (PFS, 9.9 vs. 4.6 months, p = 0.021; OS, not reached vs. 13.0 months, p = 0.001) or physician (PFS, 10.6 vs. 5.6 months, p = 0.051; OS, not reached vs. 15.6 months, p = 0.011) assessment.