Affiliations

• ¹ Gastroenterology, Gifu Prefectural General Medical Center, Gifu, Japan.
• ² First Department of Internal Medicine, Gifu University Hospital, Gifu, Japan.
• ³ Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
• ⁴ Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
• ⁵ Gastroenterology and Hepatology, Faculty of Medicine, Kindai University Hospital, Osaka, Japan.
• ⁶ Division of Gastroenterology, Department of Internal Medicine, Kobe University, Kobe, Japan.
• ⁷ Hepato-Biliary-Pancreatic Medicine, Cancer Institute Hospital, Japanese Foundation For Cancer Research, Tokyo, Japan.
• ⁸ Division of Hepatobiliary and Pancreatic Diseases, Department of Gastroenterology, Hyogo Medical University, Hyogo, Japan.
• ⁹ Gastroenterology and Hepatology, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
• ¹⁰ Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan.
• ¹¹ Gastroenterology, Gifu Municipal Hospital, Gifu, Japan.
• ¹² Third Department of Internal Medicine, University of Toyama, Toyama, Japan.
• ¹³ Gastroenterological Endoscopy, Kanazawa Medical University, Ishikawa, Japan.
• ¹⁴ Internal Medicine, Institute of Gastroenterology, Tokyo Women's Medical University, Tokyo, Japan.