PPARA and neoplasm: In order to study the influence of the gene sets on the prognosis, the gene list in PPAR signaling pathway which related to tumor prognostics as we previous reported (Hao et al., 2019) were inputted for multivariate analysis in KIRC dataset, and our results show the different status of PPAR signaling pathway can distinguish the prognosis of patients with KIRC (Figure 2C).