1. Cancer Epidemiology Unit, Nuffield Department of Population HealthUniversity of Oxford Oxford United Kingdom
2. International Agency for Research on Cancer Lyon France
3. Division of Cancer EpidemiologyGerman Cancer Research Center (DKFZ) Heidelberg Germany
4. Department of EpidemiologyGerman Institute of Human Nutrition (DIfE) Potsdam‐Rehbrücke Nuthetal Germany
5. Hellenic Health Foundation Athens Greece
6. 2nd Pulmonary Medicine DepartmentSchool of Medicine, National and Kapodistrian University of Athens, “ATTIKON” University Hospital Haidari Greece
7. Cancer Risk Factors and Life‐Style Epidemiology UnitInstitute for Cancer Research, Prevention and Clinical Network (ISPRO) Florence Italy
8. Epidemiology and Prevention UnitFondazione IRCCS Istituto Nazionale dei Tumori Milano Italy
9. Cancer Registry and Histopathology Department“Civic ‐ M.P.Arezzo" Hospital, Azienda Sanitaria Provinciale Di Ragusa (ASP) Ragusa Italy
10. Department for Determinants of Chronic Diseases (DCD)National Institute for Public Health and the Environment (RIVM) Bilthoven The Netherlands
11. Department of Gastroenterology and HepatologyUniversity Medical Centre Utrecht The Netherlands
12. Department of Epidemiology and BiostatisticsSchool of Public Health, Imperial College London London United Kingdom
13. Department of Social & Preventive Medicine, Faculty of MedicineUniversity of Malaya Kuala Lumpur Malaysia
14. Unit of Nutrition and Cancer, Cancer Epidemiology Research ProgramCatalan Institute of Oncology‐IDIBELL, L'Hospitalet de Llobregat Barcelona Spain
15. CIBER in Epidemiology and Public Health (CIBERESP) Madrid Spain
16. Escuela Andaluza de Salud Pública, Instituto de Investigación Biosanitaria ibs.GRANADAHospitales Universitarios de Granada/Universidad de Granada Granada Spain
17. Department of EpidemiologyRegional Health Council, IMIB‐Arrixaca Murcia Spain
18. Department of Health and Social SciencesMurcia University Murcia Spain
19. Navarra Public Health Institute Pamplona Spain
20. IdiSNA, Navarra Institute for Health Research Pamplona Spain
21. Basque Regional Health DepartmentPublic Health Division of Gipuzkoa‐BIODONOSTIA San Sebastian Spain
22. Department of Hygiene and EpidemiologyUniversity of Ioannina School of Medicine Ioannina Greece