KMT2D and esophageal squamous cell carcinoma: Finally, 18 SMGs were identified (Fig. 2, Supplementary Table 6), 15 of which had been previously reported in ESCC (TP53, AJUBA, CDKN2A, KMT2D(MLL2), ZNF750, FAT1, NOTCH1, NOTCH3, PIK3CA, NFE2L2, RB1, KDM6A, FBXW7, CREBBP, and TGFBR2).