After submission of our work, Han et al reported their GWAS work on SLE on Chinese populations [18] and reported genome-wide significant association signals on ETS1 (rs6590330, downstream of the gene) and WDFY4 (rs1913517, in the intron of both WDFY4 and LRRC18, leucine rich repeat containing 18). This evidence concerns the gene WDFY4 and systemic lupus erythematosus.