GMFG and thyroid cancer: As shown in Fig. 1c, high expression of GMFG was correlated with early pathological stage in bladder cancer (BLCA) (P = 0.016), LUAD (P = 0.015), skin cutaneous melanoma (SKCM) (P = 0.006) and thyroid cancer (THCA) (P = 0.01), but was linked with advanced pathological stage in stomach cancer (STAD) (P = 0.028).