In the total cohort, univariate analyses showed that, besides the previously described tumour PD-L1 expression, also stromal CD3+, stromal CD4+, combined stromal infiltration of CD8+ and PD-1+ immune cells and tumour and stromal infiltration of CD8+ immune cells were associated with DCB (Supplementary Table 6). The gene discussed is CD8A; the disease is neoplasm.