CD274 and hepatitis B virus infection: The pathways were pathways in cancer, Hepatitis B, viral carcinogenesis, pancreatic cancer, and EGFR tyrosine kinase inhibitor resistance, PD-L1 expression and PD-1 checkpoint pathway in cancer, human papillomavirus infection, non-small cell lung the active components of cancer, human T-cell leukemia virus 1 infection, Kaposi sarcoma-associated herpesvirus infection are shown in Table 1.