Additional file 1 Supplemental Table 1. The correlation between IFT20 and GM130 protein in cancerous and adjacent tissues. Supplemental Fig. 1. The forest plot of Cox proportional hazard regression models with TNM stage included. To exclude collinearity, the three types' expressions of IFT20 and GM130 protein (IOD/area, rate of positive cells, and staining intensity score) were separately included in the model.