1. Department of Biology University of Pisa Pisa Italy
2. Blood Transfusion Service Azienda Ospedaliera‐Universitaria Meyer, Children's Hospital Florence Italy
3. Pancreato‐Biliary Endoscopy and Endoscopic Ultrasound, Pancreas Translational and Clinical Research Center IRSSC San Raffaele Scientific Institute Milan Italy
4. Digestive and Liver Disease Unit Sant'Andrea Hospital Rome Italy
5. Department of Surgery Lithuanian University of Health Sciences Kaunas Lithuania
6. Oncology of Massa Carrara, Oncological Department Azienda USL Toscana Nord Ovest Carrara Italy
7. Department of Digestive Tract Diseases Medical University of Lodz Lodz Poland
8. Laboratory Medicine, Department DIMED University of Padova Padua Italy
9. Endoscoopic Unit, Gastroenterology Department IRCCS Humanitas Research Hospital Rozzano, Milan Italy
10. Department of General, Visceral and Thoracic Surgery University Hospital Hamburg‐Eppendorf Hamburg Germany
11. Carol Davila University of Medicine and Pharmacy Bucharest Romania
12. Digestive Diseases and Liver Transplantation Center Fundeni Clinical Institute Bucharest Romania
13. Center for Translational Medicine Semmelweis University Budapest Hungary
14. Division of Pancreatic Diseases, Heart and Vascular Center Semmelweis University Budapest Hungary
15. Saarland Cancer Registry Saarbrücken Germany
16. Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute Oswaldo Cruz Foundation (Fiocruz) Curitiba Parana Brazil
17. Department of Hematology, Transplantation and Internal Medicine Medical University of Warsaw Warsaw Poland
18. Department of Surgery, University Hospital Kralovske Vinohrady, Third Faculty of Medicine Charles University Prague Czech Republic
19. University Hospital Olomouc Olomouc Czech Republic
20. Gastroenterology and Gastrointestinal Endoscopy Unit, Vita‐Salute San Raffaele University IRCCS San Raffaele Scientific Institute Milan Italy
21. Department of DiSCOG University of Padova Padua Italy
22. Faculty of Medicine and Dentistry Palacky University Olomouc Olomouc Czech Republic
23. Clinics of Institute of Endocrinology Lithuanian University of Health Sciences Kaunas Lithuania
24. Faculty of Medicine in Pilsen, Biomedical Center Charles University Pilsen Czech Republic
25. Department of Surgery Erasmus MC University Medical Center Rotterdam The Netherlands
26. Division of Clinical Epidemiology and Aging Research German Cancer Research Center (DKFZ) Heidelberg Germany
27. Division of Preventive Oncology German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT) Heidelberg Germany
28. German Cancer Consortium (DKTK) German Cancer Research Center (DKFZ) Heidelberg Germany
29. Department of Molecular Biology of Cancer Institute of Experimental Medicine of the Czech Academy of Sciences Prague Czech Republic
30. Institute of Biology and Medical Genetics, First Faculty of Medicine Charles University Prague Czech Republic
31. Division of Gastroenterology and Research Laboratory Fondazione IRCCS “Casa Sollievo della Sofferenza” Hospital San Giovanni Rotondo Italy
32. Gastroenterology Department, Institute for Digestive Research Lithuanian University of Health Sciences Kaunas Lithuania
33. Department of Surgery, Amsterdam UMC University of Amsterdam, Cancer Center Amsterdam Amsterdam The Netherlands
34. General Surgery, Department of Translational Research and New Technologies in Medicine and Surgery University of Pisa Pisa Italy
35. First Propaedeutic University Surgery Clinic, Hippocratio General Hospital, Medical School National and Kapodistrian University of Athens Athens Greece
36. Department of Basic Medical Sciences, Laboratory of Biology, Medical School National and Kapodistrian University of Athens Athens Greece
37. Potenza County Medical Association Potenza Italy
38. Division of General and Transplant Surgery Pisa University Hospital Pisa Italy
39. Department of General Surgery University of Heidelberg Heidelberg Germany
40. Institute for Translational Medicine, Medical School University of Pécs Pécs Hungary
41. János Szentágothai Research Center University of Pécs Pécs Hungary
42. Pancreatic Surgery Department IRCCS Humanitas Research Hospital Rozzano, Milan Italy
43. Humanitas University Rozzano, Milan Italy
44. ARC‐NET Centre for Applied Research on Cancer University and Hospital Trust of Verona Verona Italy
45. Genomic Epidemiology Group German Cancer Research Center (DKFZ) Heidelberg Germany