XRCC4 and ovarian carcinoma: Remarkably, highly expressed mRNA level of XRCC4 was linked to worse PFS and OS in ovarian carcinoma women with all stages (stage I+II: PFS: HR=1.77 (1-3.14), P=0.046, OS: HR=2.6 (1.2-5.65), P=0.012; stage III+IV, PFS: HR=1.23 (1.06-1.43), P=0.0072, OS: HR=1.53 (1.31-1.79), P=0.0000).