MUSK and thymoma: Moreover, the distribution of above three risk alleles among subgroups were compared only within the patients with MG according to the age at onset of MG, AChR/MuSK antibody status, thymus status, muscles involved, Osserman type and gender, where an increased 733618*C in EOMG than in LOMG (0.506 vs 0.317) and an increased rs231775*A in patients with thymoma than those without thymoma (0.357 vs 0.214, OR = 2.037, range = 1.099–3.774) were observed (Table S3).