Title Search [PO-001] Re-do Laparoscopic Common Bile Duct Exploration For Recurrent Choledocholithiasis Seung Jae LEE (건양의대) [PO-002] Laparoscopic Subtotal Cholecystectomy Is An Alternative Treatment Option To Protect Common Bile Duct On Severe Inflammatory Gall Bladder; Multicenter Retrospective Cohort Study Sung Eun PARK (가톨릭의대) [PO-003] Percutaneous Cholecystoduodenal Stent As A Definite Treatment For Acute Cholecystitis In Elderly Or Comorbid Patients: A Bicentric Retrospective Study Go Eun LEE (가톨릭의대) [PO-004] The Outcomes Of Laparoscopic Common Bile Duct Exploration(LCBDE) After Failed Endoscopic Retrograde Cholangiopancreatography(ERCP) Versus Primary LCBDE For Managing Cholecysto-choledocholithiasis. Hanbaro KIM (한림의대) [PO-005] ArtiSential® Assisted Laparoscopic Cholecystectomy Versus Single-Fulcrum Laparoscopic Cholecystectomy: Which Minimally Invasive Surgery Is Better For The Patient? Jaehwan JEONG (연세의대) [PO-006] Choledochoplasty With Gastric Flap For The Case Of Bile Duct Stricture Yung Kil KIM (순천향의대) [PO-007] Minimally invasive single-incision cholecystectomy: comparison of postoperative outcomes of da Vinci robotic SP, Xi system, and laparoscopic cholecystectomy Jeong-Ik PARK (울산의대) [PO-008] Development And Validation Of A Difficulty Scoring System For Laparoscopic Liver Resection To Treat Hepatolithiasis Yeongsoo JO (이화의대) [PO-009] Feasibility And Safety Of Laparoscopic Liver Resection For Intrahepatic Duct Stone Disease: A Comparative Analysis With An Open Approach Hye-Sung JO (고려의대) [PO-010] Laparoscopic Choledochoduodenostomy And Common Bile Duct Stone Removal With Choledochoscopy For Recurrent Bile Duct Stones Eun-Jin CHOI (충남의대) [PO-011] The High-Volume Center Experience In Living Donor Liver Transplantation For Patients With Secondary Biliary Cirrhosis Due To Hepatolithiasis Sung-Min KIM (울산의대) [PO-012] Hepatic Congestion-Linked Intrahepatic Biliary Strictures In Right Liver Grafts Hyun Hwa CHOI (서울의대) [PO-013] Laparoscopic Choledocholithotomy And Transductal T-tube Insertion With Indocyanine Green Fluorescence Imaging And Laparoscopic Ultrasound Daegwang YOO (순천향의대) [PO-014] The Gallstone Disease Is Significantly Higher In The Corona Virus-19 Period Oh-Sung KWON (제주의대) [PO-015] A Comparison Of The Therapeutic Outcomes Between Internal Stent And T-tube Drainage After Laparoscopic Common Bile Duct Exploration Jung Woo LEE (한림의대) [PO-016] A Rare Case Of Large CBD Stone And Gallstone Ileus Yoo Jin CHOI (고려의대) [PO-017] Successful Treatment Of A Belated Biliary Stricture And Stones 7 Years After Living Donor Liver Transplantation Sehyeon YU (고려의대)