Fig. 6From: Survival analysis of laparoscopic surgery and open surgery for hilar cholangiocarcinoma: a retrospective cohort studyA Survival curve analysis of the overall survival time between the LS and OS groups; the difference was not statistically significant (P = 0.358). B Survival curve analysis of the DFS time between the LS and OS groups; the difference was not statistically significant (P = 0.945)Back to article page