HLA-DRB1 and myasthenia gravis: As shown in Figure 3 and Table S4, haplotype analysis found that HLA‐DRB1*07‐DQB1*02 was significantly associated with LOMG and conferred the strongest risk in this MG subtype (HLA‐DRB1*07‐DQB1*02 vs all the other haplotypes: OR = 4.10, 95% C.I. 2.80‐5.99, P = 6.01 × 10‐11).