1. Cancer Surveillance Branch International Agency for Research on Cancer Lyon France
2. Department of Radiation Oncology, Princess Margaret Cancer Centre University of Toronto Toronto Canada
3. North American Association of Central Registries Springfield Illinois USA
4. University of Birmingham Birmingham UK
5. Royal Marsden Hospital London UK
6. Cancer Research UK London UK
7. Epidemiology and Cancer Registry CancerCare Manitoba Winnipeg Manitoba Canada
8. Nuffield Department of Population Medicine University of Oxford Oxford UK