1. Laboratory Center, Hospital of Southern Jutland, Denmark
2. Institute of Regional Health Research - Center Sønderjylland, University of Southern Denmark, Denmark
3. Institute of Molecular Medicine, University of Southern Denmark, Denmark
4. Department of Medicine, Norwich Medical School University of East Anglia, UK
5. Norfolk & Norwich University Hospitals NHS Trust, UK
6. Strangeways Research Laboratory, Institute of Public Health, University of Cambridge, UK
7. Danish Cancer Society Research Center, Danish Cancer Society, Denmark
8. Division of Clinical Epidemiology, DKFZ - German Cancer Research Centre, Germany
9. Department of Clinical Sciences, University Hospital, Sweden
10. Department of Epidemiology, German Institute of Human Nutrition, Germany
11. Department of Medical Biosciences, Clinical Chemistry, Umeå University, Sweden
12. Department of Public Health and Clinical Medicine, Umeå University, Sweden
13. Department of Public Health, Section for Epidemiology, Aarhus University, Denmark
14. Department of Gastroenterology and Hepatology, University Medical Center Utrecht, The Netherlands
15. INSERM, Centre for Research in Epidemiology and Population Health, Institut Gustave Roussy, France
16. Universite Paris Sud, UMRS 1018, France
17. Department of Gastroenterology, Bicetre University Hospital, Assistance Publique des Hopitaux, France
18. Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, UK
19. Cancer Risk Factors and Life-Style Epidemiology Unit, Cancer Research and Prevention Institute – ISPO, Italy
20. Cancer Registry and Histopathology Department, ‘Civic - M.P.Arezzo’ Hospital, Italy
21. WHO Collaborating Centre for Food and Nutrition Polices, Greece
22. Division of Epidemiology, Imperial College London, UK