As shown in the Supplementary Figures 1, 2, high expression of lncRNA ZFHX4-AS1 predicted shorter OS in several cancers, such as bladder carcinoma, head-neck squamous cell carcinoma, kidney renal clear cell carcinoma, stomach adenocarcinoma, uterine corpus endometrial carcinoma and OvCa, etc. This evidence concerns the gene ZFHX4 and head and neck squamous cell carcinoma.