PIF1 and nonpapillary renal cell carcinoma: As shown in Figures 3A–E, higher expression levels of PIF1 were identified in ccRCC patients with high T stage (Figure 3A), patients with high pathologic stage (Figure 3B), patients with left ccRCC (Figure 3C), patients with histologic grade (Figure 3D), and patients with M stage (Figure 3E).