HLA-DRB1 and myeloid sarcoma: The following HLA-DRB1 ~ HLA-DQB1 haplotypes showed statistical significance in control group in comparison to MS patients: HLA-DRB1 * 04:03 ~ HLA-DQB1 * 03:02 (Pc =  0.004) and HLA-DRB1 * 13:01 ~ HLA-DQB1 * 06:03 (Pc =  0.002) (Table 4).