A study involving 205 MG patients in southern China revealed that DQB1*03:03:02 is positively correlated with the onset of MG in childhood (55), DQB1*03:03 has been confirmed by multiple studies as a genetic risk factor in Japanese MG patients (56, 57), another study about Chinese juvenile- and adult-onset MG patients have found that HLA-C*01:02:01 is an associated gene for MG (58). Here, HLA-C is linked to myasthenia gravis.