1. Scottish HPV Reference Laboratory, Department of Laboratory Medicine; NHS Lothian, Royal Infirmary of Edinburgh, 51 Little France Crescent; Edinburgh EH16 4SA United Kingdom
2. Centre for Cancer Prevention (CPO), AOU Città della Salute e della Scienza via Cavour 39; Torino 10123 Italy
3. Wolfson Institute of Preventive Medicine, Queen Mary University of London; Charterhouse Square, London EC1M 6BQ United Kingdom
4. University of British Columbia and BC Women's Hospital and Health Centre, 4500 Oak Street; Vancouver British Columbia V6H 3N1 Canada
5. Faculty of Medicine; University of British Columbia; British Columbia Canada
6. Division of Cancer Epidemiology and Genetics; National Cancer Institute; Rockville Maryland
7. Cancer Prevention Regional Laboratory; ISPO, Cancer Prevention and Research Institute; Florence Italy
8. Global Health Academy, University of Edinburgh, Teviot Quad; Edinburgh EH8 9PG United Kingdom
9. Department of Pathology; VU University Medical Center (VUmc); Amsterdam The Netherlands
10. Unit of Cancer Epidemiology, Belgian Cancer Centre, Scientific Institute of Public Health; Brussels Belgium
11. Institut du Col; Paris France
12. International Agency for Research on Cancer; Lyon France