RAD51 and liver cancer: As presented in the pictures, Rad51 expression was negatively associated with OS, PFS, RFS, and DSS in patients with liver cancer (OS: HR = 2, 95%CI = 1.31–3.04, p = 0.00097; PFS: HR = 1.71, 95%CI = 1.25–2.34, p = 0.00072; RFS: HR = 1.7, 95%CI = 1.2–2.41, p = 0.0023; DSS: HR = 2.41, 95%CI = 1.43–4.03, p = 0.00059).