1. ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
2. IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
3. Department of Experimental and Health Sciences, Universitat Pompeu Fabra (UPF), Barcelona, Spain
4. CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
5. Department of Epidemiology, IRCCS (Istituto di Ricerche Farmacologiche Mario Negri), Milan, Italy
6. Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
7. Department of Preventive Medicine and Public Health, University of León, León, Spain
8. Cancer and Environmental Epidemiology Unit, National Centre for Epidemiology, Carlos III Institute of Health, Madrid, Spain
9. Cancer Epidemiology Research Group, Oncology and Hematology Area, IIS (Instituto de Investigación Sanitaria) Puerta De Hierro, Madrid, Spain
10. Department of Preventive Medicine and Public Health, University of Cantabria, Santander, Spain
11. IDIVAL (Instituto de Investigación Sanitaria Valdecilla), Santander, Spain
12. Centre for Research in Public Health, Valencia, Spain
13. Public Health Division of Gipuzkoa, Biodonostia Research Institute, San Sebastian, Spain
14. Instituto de Salud Pública y Laboral de Navarra, Pamplona, Spain
15. Oncology Institute IUOPA (Instituto Universitario de Oncología del Principado de Asturias), Universidad de Oviedo, Asturias, Spain
16. Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca (Biomedical Research Institute of Murcia), Murcia, Spain
17. Unit of Epidemiology and Biostatistics, CRO (Centro di Riferimento Oncologico) Aviano National Cancer Institute, IRCCS, Aviano, Italy
18. Institute of Hygiene and Clinical Epidemiology, University Hospital of Udine, Udine, Italy
19. Department of Biological and Medical Sciences, University of Udine, Udine, Italy
20. General Division of Public Health, Quality and Innovation, Ministry of Health, Social Services and Equity, Madrid, Spain
21. Catalan Institute of Oncology, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
22. Department of Clinical Sciences, University of Barcelona, Barcelona, Spain
23. Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy