1. Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine
2. Department of Hepatobiliary and Pancreatic Surgery, Yonsei University College of Medicine
3. Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine
4. Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
5. Department of Surgery, Kyungpook National University Medical Center, Daegu, Republic of Korea
6. Department of Surgery, Konyang University Hospital, Konyang University College of Medicine, Daejeon
7. Division of Hepato-Pancreato-Biliary Surgery, Department of Surgery, Chonnam National University Medical School, Gwangju
8. Division of Hepatobiliary–Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine
9. Department of Surgery, College of Medicine, Inje University, Busan Paik Hospital
10. Department of Surgery, College of Medicine at Kosin University, Busan
11. Division of Hepato-Biliary and Pancreatic Surgery, Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul