1. Liver and Pancreas Center, Department of Surgery, The Medical City Clark, Mabalacat, Philippines.
2. Department of Surgery, Centro Medico De Santisimo Rosario Hospital, City of Balanga, Philippines.
3. Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
4. Pancreatobiliary Cancer Center, Yonsei Cancer Center, Severance Hospital, Seoul, Korea.
5. HepatoPancreatoBiliary Service, Alfred Health, Melbourne, VIC, Australia.