Figure 5F is an analysis of immune cell correlation in the core gene in the dataset GSE59071 (CD), showing that in RA and CD, there are Regulatory.T.cell, Plasmacytoid.dendritic.cell, MDSC, Macrophage, Gamma.delta.T.cell, Activated.CD8.T.cell, Activated.CD4.T.cell 8 immune cells have a positive correlation with core genes. The gene discussed is CD8A; the disease is rheumatoid arthritis.