1. Department of General Surgery, Tuen Mun Hospital, Hong Kong SAR, China.
2. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
3. Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Korea.
4. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
5. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yongin Severance Hospital, Yongin, Korea.