Title Search [BP SY 2-1] Curative re-resection after incidental gallbladder cancer: When and how? Hee Joon KIM (Chonnam National University, Korea) [BP SY 2-2] What is optimal extent of LN dissection? Seung Eun LEE (Chung-Ang University, Korea) [BP SY 2-3] Additional visceral organ resection and/or major hepatectomy for locally advanced gallbladder cancer: Short- and long-term outcomes Yosuke INOUE (Cancer Institute Hospital, Japan) [BP SY 2-4] Updated role of chemotherapy and immunotherapy in biliary tract cancer Do-Youn OH (Seoul National University Hospital, Korea)