| Affiliation: | 1. Department of General Internal Medicine, Hiroshima University Hospital, Minami‐ku, Hiroshima, Japan;2. Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan;3. Department of Internal Medicine, Banbuntane Houtokukai Hospital, Fujita Health University School of Medicine, Nagoya, Japan;4. Department of Community‐Based Medical Educations, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan;5. Department of Medicine and Clinical Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan;6. Saitama Medical University International Medical Center, Saitama, Japan |
