1. International Agency for Research on Cancer; Lyon France
2. Division of Cancer Epidemiology and Genetics; National Cancer Institute; Bethesda MD
3. Department of Epidemiology, Gillings School of Global Public Health; University of North Carolina; Chapel Hill NC
4. Department of Epidemiology, School of Public Health; University of São Paulo; São Paulo Brazil
5. Department of Genetics and Evolutionary Biology; Institute of Bioscience, University of São Paulo; São Paulo Brazil
6. Department of Molecular Biology, School of Medicine of São José do Rio Preto; São José do Rio Preto; Brasil
7. Virology Laboratory; Tropical Medicine Institute, University of São Paulo; São Paulo Brazil
8. Division of Head and Neck, Department of Surgery, School of Medicine; University of São Paulo; São Paulo Brazil
9. Section of Hygiene-Institute of Public Health, Faculty of Medicine, Università Cattolica del Sacro Cuore; Rome Italy
10. Institute of Otorhinolaryngology, Università Cattolica del Sacro Cuore; Rome Italy
11. Institute of Anatomic Pathology, Università Cattolica del Sacro Cuore; Rome Italy
12. Leibniz Institute for Prevention Research and Epidemiology-BIPS; Bremen Germany
13. Institute for Statistics, University Bremen; Bremen Germany
14. Department of Medical Sciences; CeRMS and University of Turin; Turin Italy
15. Dental School, University of Glasgow; Glasgow United Kingdom
16. Department of Pathology; Queen Elizabeth University Hospital; Glasgow United Kingdom
17. Johns Hopkins Bloomberg School of Public Health; Baltimore MD