1. Division of Oncology, Department of Oncology and Hematology University of Modena and Reggio Emilia Modena Italy
2. Division of Gastroenterology, Department of Medicine Kurume University School of Medicine Kurume Japan
3. Early Phase Clinical Trial Unit, Department of Oncology Veneto Institute of Oncology IOV‐IRCCS Padua Italy
4. Medical Oncology Unit 1, Department of Oncology Veneto Institute of Oncology IOV—IRCCS Padua Italy
5. Department of Internal Medicine Japanese Red Cross Himeji Hospital Himeji Japan
6. Unit of Medical Oncology Pisa University Hospital Pisa Italy
7. Medical Oncology Unit University Hospital and University of Cagliari Cagliari Italy
8. Department of Medical Oncology IRCCS San Raffaele Hospital Milan Italy
9. Gastroenterology Center Ehime Prefectural Central Hospital Matsuyama Japan
10. Department of Gastroenterology Saiseikai Niigata Hospital Niigata Japan
11. Department of Hepatology Kagawa Prefectural Central Hospital Takamatsu Japan
12. Division of Gastroenterology and Hepatology Otakanomori Hospital Kashiwa Japan
13. Department of Gastroenterology Okayama City Hospital Okayama Japan
14. Hepato‐biliary Center Matsuyama Red Cross Hospital Matsuyama Japan
15. Department of Gastroenterology and Metabology Ehime University Graduate School of Medicine Matsuyama Japan