1. National HPV Vaccination Program Register, VCS Registries; East Melbourne Vic Australia
2. School of Population and Global Health; University of Melbourne; Vic Australia
3. Modelling and Economics Unit; Public Health England; London United Kingdom
4. Department of Infectious Disease Epidemiology; London School of Hygiene and Tropical Medicine; London United Kingdom
5. Department of Pathology; University of New Mexico Health Sciences Center; Albuquerque NM
6. Département de Médecine Sociale et Préventive; Université Laval; Québec QC Canada
7. Infections & Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH; Bethesda MD
8. Department of Surgery; Harvard Medical School, Massachusetts General Hospital; Boston MA
9. Department of Otolaryngology Head and Neck Surgery; Johns Hopkins School of Medicine, Johns Hopkins Outpatient Center; Baltimore MD
10. Institut du Col; 174 Rue de Courcelles Paris 75017 France
11. International Agency for Research on Cancer; 69372 Lyon cedex 08 France