Title Search [BP BEST OP 1] Anticancer effect of locally applicable aptamer-conjugated gemcitabine-loaded atelocollagen patch in pancreatic cancer patient-derived xenograft models Seung Soo HONG (Department of Surgery, Yonsei University College of Medicine, Korea, ) [BP BEST OP 2] Adverse effect of sarcopenic obesity on postoperative complications after major hepatectomy in patients with hilar cholangiocarcinoma Youngju RYU (Division of Hepatobiliary-Pancreatic surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, ) [BP BEST OP 3] Characteristics of cholangiocarcinoma in India - experience from a tertiary care centre Krunal KHOBRAGADE (GI and HPB surgery, Department of Surgical Oncology, Sir HN Reliance Foundation Hospital and research centre, Mumbai, India, India, ) [BP BEST OP 4] Effects of Pancreatectomy on Nutritional State, Pancreatic Function and Quality of Life for 5 Years Follow-up Yong Chan SHIN (Department of Surgery, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea, ) [BP BEST OP 5] Optimal multiple biomarkers combination to diagnosis pancreatic cancer Hongbeom KIM (Surgery, Seoul National University Hospital, Korea, )