PARK7 and colorectal carcinoma: Firstly, the sample size to detect DJ‐1 protein expression in the tumors of patients with CRC is small (n = 100), and the multivariate analysis results for overall survival in CRC (Table 4) showed that the value of HR for DJ‐1 is higher than that of TNM, indicating that DJ‐1 has a controversial high sensitivity; therefore, more samples are needed to support our results that the high expression of DJ‐1 could predict the poor prognosis.