TP53 and small cell lung carcinoma: The top ten pathways associated with genes exhibiting significant enrichment in the KEGG pathway database were involved in cancer‐related microRNAs, p53 signaling, prostate cancer, the cell cycle, small cell lung cancer, Epstein–Barr virus infection, cancer pathways, PI3K–AKT signaling, and human papillomavirus infection (Fig. S4A–D).