ERCC5 and colorectal carcinoma: Therefore, the aim of our study was to assess the association of four potentially functional SNPs of XPG (rs2094258 C>T, rs2296147 T>C, rs751402 G>A, and rs873601 G>A) with over-all survival (OS) and progression-free survival (PFS) of CRC in 1901 Chinese CRC patients.