HLA-DRB1 and myeloid sarcoma: Another recent study on normal population of Khuzestan reported that DRB1*1501+-DQB1*0602+-DQA1*0102+-DRB5*01-, DRB1*1501--DQB1*0602+-DQA1*0102+-DRB5*01-, DRB1*1501+-DQB1*0602+-DQA1*0102+-DRB5*01+, and DRB1*1501--DQB1*0602+-DQA1*0102+-DRB5*01+ haplotypes were the most frequent four allelic haplotype in this population.22 We found no association between DRB5*01+-DRB1*1501+ haplotype and MS in this study.