PDCD1 and neoplasm: Distribution of quantitative parameters relative to mitotic count, Ki67 index, nuclear atypia and counts of CD3+/CD20+ positive tumour infiltrating lymphocytes with respect to PD‐L1, PD‐1 and CTLA‐4 ACD RNAscope semi‐quantitative scores in neoplastic cells (Wilcoxon's rank‐sum test).