1. Genetic Epidemiology Group, International Agency for Research on Cancer; Lyon France
2. Cancer Research Program, Rajiv Gandhi Centre for Biotechnology; Thiruvananthapuram Kerala India
3. Genetic Cancer Susceptibility Group, International Agency for Research on Cancer; Lyon France
4. Department of Hygiene, Epidemiology and Medical Statistics; University of Athens Medical School; Athens Greece
5. Department of Public Health and Community Health; School of Health Professions, Athens University of Applied Sciences; Athens Greece
6. Leibniz Institute for Prevention Research and Epidemiology - BIPS; Bremen Germany
7. Institute of Statistics, Faculty of Mathematics and Computer Science; University Bremen; Bremen Germany
8. Institute of Hygiene and Epidemiology, 1st Faculty of Medicine, Charles University of Prague; Prage Czech Republic
9. Department of Otorhinolaryngology and Head and Neck Surgery; 1st Faculty of Medicine, Charles University of Prague; Prague Czech Republic
10. Unit of Cancer Epidemiology, Department of Medical Sciences; University of Turin; Turin Italy
11. Cancer Registry of Norway; Oslo Norway
12. Unit of Cancer Epidemiology, Aviano National Cancer Institute, IRCCS; Aviano Italy
13. Department of Cardiovascular and Thoracic Sciences; University of Padova; Padova Italy
14. Institut Català d'Oncologia, IDIBELL, L'Hospitalet de Llobregat; Catalonia Spain
15. CIBER en Epidemiología y Salud Pública (CIBERESP); Madrid Spain
16. Epidemiology Group, University of Aberdeen; Aberdeen United Kingdom
17. Ninewells Hospital and Medical School; University of Dundee; Dundee United Kingdom
18. Cancer Surveillance Section, International Agency for Research on Cancer; Lyon France
19. Center for Oral Health Research, Newcastle University; Newcastle-upon-Tyne United Kingdom
20. Department of Cardiac, Thoracic and Vascular Sciences; University of Padova; Padova Italy
21. School of Medicine, Dentistry, and Nursing; University of Glasgow; Glasgow United Kingdom
22. Department of Pathology; Queen Elizabeth University Hospital; Glasgow United Kingdom
23. Trinity College School of Dental Science; Dublin Ireland
24. Institute of Othorinolaringoiatry, Università Cattolica del Sacro Cuore, Fondazione Policlinico ‘Agostino Gemelli’; Rome Italy
25. Section of Hygiene - Institute of Public Health, Università Cattolica del Sacro Cuore, Fondazione Policlinico ‘Agostino Gemelli’; Rome Italy
26. Infections and Cancer Biology Group; International Agency for Research on Cancer; Lyon France