Title Search [LV OP 4-1] Anatomical resection versus non-anatomical resection for hepatocellular carcinoma: A propensity score matched analysis Jae Hyun KWON (Hallym University, Korea) [LV OP 4-2] Randomised controlled trial to evaluate a new sealant to prevent Biliary Fistula in liver surgery: Should we reconsider Bile Leak Classification? Matteo Maria CIMINO (Humanitas Clinical and Research Center - IRCCS, Italy) [LV OP 4-3] “Anatomic” liver resection performed by approaching the Umblical plate for perihilar cholangiocarcinoma (with video) Ji Su KIM (Yonsei University, Korea) [LV OP 4-4] A novel online calculator for estimating survival benefit of adjuvant TACE in patients undergoing surgery for HCC Tian YANG (Zhejiang Provincial People's Hospital (People's Hospital of Hangzhou Medical College), China) [LV OP 4-5] Efficacy of liver resection for single large hepatocellular carcinoma in Child-Pugh A cirrhosis: Analysis of nationwide cancer registry database Suk Kyun HONG (Seoul National University, Korea) [LV OP 4-6] Institutional experience and clinical outcomes of robotic major Hepatectomy for liver tumors Iswanto SUCANDY (AdventHealth Tampa, USA) [LV OP 4-7] A scoring system to predict the risk of postoperative complications after laparoscopic liver resection in elderly hepatocellular carcinoma patients Boram LEE (Seoul National University, Korea)