CD274 and small cell lung carcinoma: Prolonged DFS was also observed in patients with higher CD3 infiltration (Supplementary Fig. 22a, HR = 0.30, p = 0.0059) or positive PD-L1 expression (Supplementary Fig. 22b, HR = 0.54, p = 0.1411) in their tumors, suggesting that increased intratumor T-cell infiltration was associated with superior disease control and survival in these SCLC patients.