RP9P and neoplasm: Except for GVINP1 and NCF1C, the expression of the other 5 prognosis-related DE pseudogenes (DDX12P, FER1L4, NSUN5P2, PLEKHA8P1 and RP9P) were higher in tumor tissues than in cutting edge normal tissues, which was totally consistent with the results of TCGA samples.