CD274 and neoplasm: The median proportions of PD-L1- and PD-L1+ macrophages in tumor compartments were 1.464% (95% CI, 1.043%–2.669%) and 0.790% (95% CI, 0.469%–2.455%) at baseline (Figure 2E), which elevated to 3.043% (95% CI, 2.382%–5.290%) and 2.376% (95% CI, 1.694%–6.964%) during the combination (Figure 2E).