Title Search [LV BEST OP 1] Examination of optimal lymph node dissection for mass-forming type intrahepatic cholangiocarcinoma Makoto KURIMOTO (Kyoto University, Japan) [LV BEST OP 2] Outcomes and risk factors for living donor liver transplantation using graft-to-recipient weight ratio <0.8 graft: Korean national registry study Deok-Gie KIM (Yonsei University, Korea) [LV BEST OP 3] Preoperative detection of hepatocellular carcinoma’s microvascular invasion on ct-scan by artificial-intelligence and radiomics analyses Simone FAMULARO (IRCCS Humanitas Research Hospital, Italy) [LV BEST OP 4] Long-term outcomes of liver transplantation in hepatocellular carcinoma patients with portal vein tumor thrombosis after downstaging Sang-Hoon KIM (University of Ulsan, Korea) [LV BEST OP 5] Machine learning-based survival rate prediction of Korean hepatocellular carcinoma patients using multi-center data Byeong Gwan NOH (Pusan National University, Korea) [LV BEST OP 6] Comparison of clinical outcomes using the left and right liver grafts in adult-to-adult living donor liver transplantation: A propensity score-matched analysis using the KOTRY database Hye-Sung JO (Korea University, Korea)