CDKN2A and colorectal carcinoma: In order to investigate the correlation between the expression levels of CDKN2A and the clinicopathological features of CRC patients, we divided the 66 CRC patients into two groups based on their relative expression of CDKN2A: a group with high expression (n = 34, > 1); and a group with low expression (n = 32, < 1).