Department of Surgery, Academic Medical Center, Amsterdam, The Netherlands

Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy

Shanghai Changzheng Hospital, Shanghai, China

The Affiliated Union Hospital of Fujian Medical University, Fuzhou, China

Department of Colorectal Surgery, China Medical University Hospital, Taichung, Taiwan

Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, Queen Mary Hospital, the University of Hong Kong, Hong Kong, China

Division of Gastrointestinal Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea

Division of Colorectal Surgery, Department of Surgery, Stony Brook University Hospital, Stony Brook, NY, USA

Institute for Surgical Advancement, Florida Hospital Orlando, Orlando, FL, USA

Qilu Hospital, Shandong University, Jinan, China

Department of Surgery, School of Medicine, Ajou University, Suwon, Korea

Department of Gastroenterological and Pediatric Surgery, Oita University Faculty of Medicine, Oita, Japan

Hepatobiliary and Pancreatic Surgical Unit, Department of Surgery and Cancer, Imperial College, Hammersmith Hospital Campus, London, UK

Division of Gastric Surgery, National Cancer Center Hospital East, Kashiwa-Chiba, Japan

Department of Surgery, Seoul National Bundang Hospital, Seongnam, Korea

Center for Gastric Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea

Division of Gastroenterology, Hepatology and Nutrition, The Ohio State University, Columbus, OH, USA

Department of Surgery & Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

Department of HBP Surgery and Liver Transplantation, Yeungnam University Hospital, Daegu, Korea

Department of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Duke - NUS Medical School Singapore, Singapore

Department of Surgery, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea

Department of Pediatric General & Urogenital Surgery, Juntendo University School of Medicine, Tokyo, Japan

Division of Gastro-enterologic Surgery, Department of Surgery, Korea University Medical Center-Ansan Hospital, Seoul, Korea

Division of Hepatobiliary Surgery and Liver Transplantation, Department of Surgery, Asan Medical Center, Ulsan University, Seoul, Korea

Department of Surgery, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Korea

Department of Surgery, Keio University, School of Medicine, Tokyo, Japan

Department of Liver and Pancreatic Surgery, Moscow Clinical Scientific Center, Moscow, Russia

Department of General Surgery, Division of Minimally Invasive and Metabolic Surgery, Cleveland Clinic Florida, Weston, FL, USA

Department of General Digestive & Endocrine Surgery, University Hospital Strasbourg, Strasbourg, France

Division of Gastroenterological & General Surgery, Department of Surgery, School of Medicine, Showa University, Tokyo, Japan

Department of Esophageal Surgery, Showa University Hospital, Tokyo, Japan

University Rey Juan Carlos, Madrid, Spain

Endoscopy Division, the National Cancer Center Hospital, Tokyo, Japan

Cancer Center, Deparment of Surgery, School of Medicine, Keio University, Shinjyuku, Tokyo, Japan

Jiangsu Provincial People's Hospital, Nanjing, China

Department of Surgery, Iwate Medical University School of Medicine, Morioka, Iwate, Japan

Department of Surgery, Kitasato University School of Medicine, Kanagawa, Japan

Huashan Hospital, Fudan University, Shanghai, China

Division of Endocrine & Minimally Invasive Surgery, Department of Surgery, New York Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA

Department of Surgery, Flinders University, Flinders Medical Centre, Adelaide, South Australia, Australia

Section of Interventional Endoscopy, Division of Gastroenterology and Hepatology, University of Virginia Health System, Charlottesville, VA, USA