Affiliation: | 1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan;2. Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo, Japan;3. Center for Preventive Medicine, Keio University School of Medicine, Tokyo, Japan;4. School of Data Science, Yokohama City University, Yokohama, Japan |