1. Section of Cancer SurveillanceInternational Agency for Research on Cancer Lyon France
2. University of MelbourneCentre for MEGA Epidemiology Carlton Victoria Australia
3. University of TorontoDepartment of Radiation Oncology Toronto Ontario Canada
4. University of LeedsLeeds Institute of Cancer Studies & Pathology, Division of Epidemiology & Biostatistics, St James's University Hospital Leeds United Kingdom