HLA-DRB1 and myeloid sarcoma: To determine whether the rs4959039:A>G allele adds to the risk of MS in HLA-DRB1*15:01 subjects, bi-allelic haplotypes for rs3135391:T>C (the SNP that tags HLA-DRB1*15:01) and rs4959039:A>G individuals were constructed in the merged dataset (Table 2).