1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Katsushika Medical Center,Tokyo, Japan
2. Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
3. Division of Molecular Epidemiology, The Jikei University School of Medicine, Tokyo, Japan
4. Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
5. Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, Chiba, Japan
6. Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Daisan Hospital, Tokyo, Japan
7. Department of Innovative Interventional Endoscopy Research, The Jikei University School of Medicine, Tokyo, Japan
8. Department of Internal Medicine, Department of Laboratory Medicine, The Jikei University School of Medicine, Tokyo, Japan