1Department of Gastroenterology, Ogaki Municipal Hospital, Gifu, Japan
2Department of Radiology, Kanazawa University Graduate School of Medical Sciences, Ishikawa, Japan
3Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan
4Section of Hepato-Pancreato-Biliary Surgery, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
5Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
6Kanazawa University Hospital, Ishikawa, Japan
7Department of Endoscopy and Ultrasound, Kawasaki Medical School, Okayama, Japan
8Mt Elizabeth Novena Hospital Singapore and Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
9Department of Gastroenterological Surgery, Fujita Health University School of Medicine, Aichi, Japan
10Division of General Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
11Department of Surgery, Cheng Hsin General Hospital, Taipei, Taiwan
12Department of Surgical Oncology, Lilavati Hospital and Research Centre, Mumbai, India
13Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Tokyo, Japan
14Department of Surgery, Academic Medical Center, Amsterdam, The Netherlands
15Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
16DAICIM Foundation Buenos Aires Argentina
17General Surgery and Minimal Invasive Surgery “Taquini” University of Buenos Aires Buenos Aires Argentina
18Department of Surgery, Show Chwan Memorial Hospital, Changhua, Taiwan
19Department of Gastroenterology, University of Ulsan College of Medicine, Seoul, Korea
20Department of Surgery, Center for Gastroenterology and Liver Disease, Kitakyushu City Yahata Hospital, Fukuoka, Japan
21Department of General and HPB Surgery, Loreto Nuovo Hospital, Naples, Italy
22First Department of Surgery, Agia Olga Hospital, Athens, Greece
23Surgery Centre, Department of Surgery, Hong Kong Sanatorium and Hospital, Hong Kong, Hong Kong
24Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
25Department of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
26Center for Global Health, Mito Kyodo General Hospital, University of Tsukuba, Ibaraki, Japan
27Department of EBM and Guidelines, Japan Council for Quality Health Care, Tokyo, Japan
28Department of Hemodialysis and Surgery, Ichikawa Hospital, International University of Health and Welfare, Chiba, Japan
29Department of Emergency Medicine, School of Medicine University of Occupational and Environmental Health, Fukuoka, Japan
30Division of Gastroenterology and Hepatology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
31Department of Surgery, Hospital Italiano, University of Buenos Aires, Buenos Aires, Argentina
32Department of Surgery, The Chinese University of Hong Kong, Shatin, Hong Kong
33Department of Surgery, Yuan's General Hospital, Kaohsiung, Taiwan
34Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seoul, Korea
35Department of Surgery, Konyang University Hospital, Daejeon, Korea
36Department of Surgery, Yonsei University Gangnam Severance Hospital, Seoul, Korea
37Department of Surgery, Institute of Gastroenterology, Tokyo Women’s Medical University, Tokyo, Japan
38Oita University, Oita, Japan
39Department of Gastroenterolgical and Pediatric Surgery, Oita University, Faculty of Medicine, Oita, Japan
40Department of Surgery, Rush University Medical Center, Chicago, USA
41Surgical Gastroenterology/Hepatopancreatobiliary Unit, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
42Department of Surgery, JR Sapporo Hospital, Hokkaido, Japan
43Toho University, Tokyo, Japan
44Department of Gastroenterology, Second Teaching Hospital, Fujita Health University, Aichi, Japan