HLA-DRB1 and myeloid sarcoma: Within this regionHLA-DR2+ (53), HLA-DQ6 (1), DQA 0102 andDQB1 0602 (54), HLA-DRB1 (54), DR15 (55),DRB1*1501, and DRB1*1503 (56) are genessusceptible to the onset of MS.