Fig. 3

Characterization of infiltrating inflammatory cells in checkpoint inhibitor-induced liver injury, autoimmune hepatitis (AIH), and drug-induced liver injury (DILI). The absolute numbers of lymphocytes positive for CD20, CD3, CD4, or CD8 were counted per high power field. The ratios of CD20+/CD3+ or CD4+/CD8+ cells were also calculated. *p < 0.05 vs. AIH; †p < 0.05 vs. DILI