PTPN11 and pheochromocytoma: In terms of the disease-free survival (DFS) as illustrated in Figure 2B, highly expressed PTPN11 was significantly correlated with poor DFS in CESC (p = 0.022), PAAD (p = 0.041), and pheochromocytoma and paraganglioma (PCPG) (p = 0.02), while low expression of PTPN11 has poor DFS in OV (p = 0.0099).