The 75 patients were divided into 9 subgroups: AChR antibody-positive MG (AChR-MG, n = 58), early-onset (EOMG, n = 36), late-onset (LOMG, n = 22), MuSK antibody-positive MG (MuSK-MG, n = 2), seronegative (SNMG, n = 15), ocular MG (OMG, n = 27), and generalized MG (GMG, n = 48), MG with autoimmune thyroid disorders (ATD-MG, n = 16), and MG without autoimmune thyroid disorders (non-ATD-MG, n = 59) [4]. The gene discussed is MUSK; the disease is myasthenia gravis.