Affiliation: | (1) Division of Biliopancreas, Department of Surgery, Yonsei University College of Medicine, 250 Seongsanno, Shinchon-dong, Seodaemun-gu, Seoul, 120-752, Korea;(2) Clinic of Pancreatic and Biliary Cancer, Institute of Gastroenterology, Yonsei University Health System, Seoul, Korea;(3) Department of Surgery, Yonsei University Wonju College of Medicine, Wonju Christian Hospital, Wonju, Korea; |