Since the two groups of MS patients studied (Table 1 and Table 2) constitute independent samples, we combined their data to increase statistical power and a significant association was observed when considering the DRB1*03:01 non-conserved haplotypes: p = 0.037, OR = 1.39, 95% CI 1.01–1.93. The gene discussed is HLA-DRB1; the disease is myeloid sarcoma.