IFNA1 and systemic lupus erythematosus: Further analysis of SLE UDON cluster U3 showed that this CD14/CD16 monocyte–dominated cluster corresponded to our complement-associated SJIA-LD–enriched cluster U6 and type I and II IFN-associated SJIA-MAS–enriched U12, based on gene set enrichment (Figure 6C and Supplemental Figure 18).