SERPINA1 and colorectal carcinoma: The analysis identified the AP002498.1/miR‐4443/SERPINA1, LINC01871/miR‐4644 and miR‐185‐5p/GNLY axes as prognostic biomarkers for distant metastasis in patients with CRC, indicating the predictive ability of these two distant metastasis‐related ceRNA axes.