1. Department of Hepatobiliary and Pancreatic Oncology; National Cancer Center Hospital East; Kashiwa
2. Department of Gastroenterology; Ogaki Municipal Hospital; Ogaki
3. Departments of Gastroenterology and Hepatology; Osaka Red Cross Hospital
4. Department of Hepatobiliary and Pancreatic Oncology; Osaka Medical Center for Cancer and Cardiovascular Diseases
5. Department of Gastroenterology and Hepatology; Kinki University School of Medicine; Osaka
6. Department of Hepatobiliary and Pancreatic Oncology; National Cancer Center Hospital
7. Department of Internal Medicine, Medical Oncology; Kyorin University School of Medicine
8. Division of Medical Oncology and Hematology; Cancer Institute Hospital
9. Multi-institutional Clinical Trial Support Center; National Cancer Center; Tokyo
10. Department of Medical Oncology and Immunology; Nagoya City University Graduate School of Medical Sciences; Nagoya
11. Department of Gastroenterology; National Hospital Organization Shikoku Cancer Center; Matsuyama
12. The Research Center for Hepatitis and Immunology; National Center for Global Health and Medicine; Ichikawa
13. Department of Gastroenterology; Aichi Medical University School of Medicine; Nagakute Japan