1. Department of Public Health and Nursing; Faculty of Medicine and Health Science, Norwegian University of Science and Technology; Trondheim Norway
2. Department of Hygiene and Epidemiology; University of Ioannina School of Medicine; Ioannina Greece
3. WHO Collaborating Center for Nutrition and Health, Unit of Nutritional Epidemiology and Nutrition in Public Health, and Department of Hygiene, Epidemiology and Medical Statistics; School of Medicine, National and Kapodistrian University of Athens; Athens Greece
4. Bureau of Epidemiologic Research; Academy of Athens; Athens Greece
5. Department of Epidemiology; Harvard T. H. Chan School of Public Health; Boston MA
6. Cancer Epidemiology Unit, Nuffield Department of Population Health; University of Oxford; Oxford United Kingdom
7. International Agency for Research on Cancer; Lyon France
8. Department of Epidemiology and Biostatistics; School of Public Health, Imperial College London; London United Kingdom
9. Department of Epidemiology, Human Genetics and Environmental Sciences; The University of Texas-School of Public Health; Houston Texas
10. Division of Urology; The University of Texas Medical School; Houston Texas
11. Department of Epidemiology; German Institute of Human Nutrition Potsdam-Rehbrücke; Nuthetal Germany
12. Hellenic Health Foundation; Athens Greece
13. First Department of Critical Care Medicine and Pulmonary Services; University of Athens Medical School, Evangelismos Hospital; Athens Greece
14. 2nd Pulmonary Medicine Department; School of Medicine, National and Kapodistrian University of Athens, "ATTIKON" University Hospital; Haidari Greece
15. Unit of Diet, Genes and Environment, Danish Cancer Society Research Center; Copenhagen Denmark
16. Public Health Directorate; Asturias Spain
17. Unit of Nutrition and Cancer, Cancer Epidemiology Research Program; Catalan Institute of Oncology, Bellvitge Biomedical Research Institute (IDIBELL); Barcelona Spain
18. Department of Epidemiology, Regional Health Council; IMIB-Arrixaca; Murcia Spain
19. CIBER in Epidemiology and Public Health (CIBERESP); Madrid Spain
20. Department of Health and Social Sciences; Universidad de Murcia; Murcia Spain
21. Navarra Public Health Institute; Pamplona Spain
22. Navarra Institute for Health Research (IdiSNA); Pamplona Spain
23. Escuela Andaluza de Salud Pública. Instituto de Investigación Biosanitaria ibs. GRANADA. Hospitales Universitarios de Granada/Universidad de Granada; Granada Spain
24. Public Health Division of Gipuzkoa; Regional Government of the Basque Country; Donostia Spain
25. Cancer Registry and Histopathology Unit; "Civic-M.P.Arezzo" Hospital; Ragusa Italy
26. Epidemiology and Prevention Unit; Fondazione IRCCS, Istituto Nazionale dei Tumori via Venezian 1; Milan Italy
27. Cancer Risk Factors and Life-Style Epidemiology Unit; Cancer Research and Prevention Institute-ISPO; Florence Italy
28. Unit of Cancer Epidemiology; Città della Salute e della Scienza University-Hospital and Center for Cancer Prevention (CPO); Turin Italy
29. Department for Determinants of Chronic Diseases (DCD); National Institute for Public Health and the Environment (RIVM); Bilthoven The Netherlands
30. Department of Gastroenterology and Hepatology; University Medical Centre; Utrecht The Netherlands
31. Department of Social and Preventive Medicine, Faculty of Medicine; University of Malaya; Kuala Lumpur Malaysia
32. Division of Cancer Epidemiology; German Cancer Research Center (DKFZ); Heidelberg Germany
33. Public Health and Clinical Medicine; Nutritional Research, Umeå University; Sweden
34. Department of Biology and Biological Engineering; Chalmers University of Technology; Gothenburg Sweden
35. Department of Clinical Sciences; Jan Waldenströms gata 35, 205 02, Lund University; Malmö Sweden
36. Department of Public Health; Section for Epidemiology, Aarhus University; Aarhus Denmark
37. Bjørknes University College; Oslo Norway
38. University of Cambridge, School of Clinical Medicine; Cambridge United Kingdom