Title Search [LV OP 3-1] miR-4790-3p promotes the survival of hepatocellular carcinoma cells by inhibiting ZNF225 mRNA by enhancing autophagy Ho Joong CHOI (Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Korea, ) [LV OP 3-2] Preoperative controlling nutritional status score in hepatocellular carcinoma after curative hepatectomy Bum-Soo KIM (Surgery, Kyung Hee University Hopital, Korea, ) [LV OP 3-3] Enhanced liver regeneration of the secretome released from ASCs by PGC-1α-driven upregulation of mitochondrial proliferation Say-June KIM (Department of Surgery, Eunpeong St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Korea, ) [LV OP 3-4] Development and validation of novel scoring system for the prediction of disease recurrence following resection of colorectal liver metastasis Wan-Joon KIM (Division of Hepatobiliary Pancreas Surgery, Department of Surgery, Korea University Guro Hospital, Korea, ) [LV OP 3-5] Prognostic impact of metastatic lymph node numbers for intrahepatic cholangiocarcinoma Sung Hyun KIM (Hepatobiliary and Pancreatic Surgery, Yonsei University College of Medicine, Korea, ) [LV OP 3-6] surgical outcome after microscopic incomplete resection (R1) of colorectal liver metastases in the era of agressive surgical approach Essam ALHOTHAIFI (Division of HBP surgery , Department of Surgery, Yonsei University College of Medicine, Korea, )