The frequency of HLA-DRB1*04:10–HLA-DQB1*04:02 increased in MMD patients (Table 4): haplotype frequency 4.41% vs. 1.35% in the control group; P = 2.0 × 10−3; OR = 3.37. The gene discussed is HLA-DRB1; the disease is multiminicore myopathy.