CD4 and systemic lupus erythematosus: From Fig. 3b for the SLE sample, it is shown that the most important cells for classifying the patient belonging to the SLE group are mainly from the CD14+ Monocyte subpopulation (orange), while cells that make the most contribution to pushing it to the healthy group are from the NK cell (gray) and CD4 T cell (green) subpopulations.