| Institution: | 1. Department of Gastrointestinal Surgery, Graduate School of Medicine, The University of Tokyo, , Tokyo, Japan;2. Department of Gastroenterology, Murakami Memorial Hospital, Asahi University, , Gifu, Japan;3. Division of Gastroenterology, Kyoto Min‐iren Chuo Hospital, , Kyoto, Japan;4. Department of Clinical Nursing, Faculty of Medicine, Shimane University, , Matsue, Japan;5. Niigata University, , Niigata, Japan;6. Department of Clinical Research and Informatics, International Clinical Research Center, Research Institute, International Medical Center of Japan, , Tokyo, Japan |
