When MG patients were categorised according to E-L-T classification, serum levels of APRIL (p < 0.001) and IL-20 (p = 0.006) were significantly higher in patients with LOMG than in HC and levels of IL-28A (p < 0.001) were significantly higher in patients with TAMG than in HC even after Bonferroni’s correction (Table 1 and Fig. 2). Here, IL20 is linked to myasthenia gravis.