1 International Agency for Research on Cancer, Lyon, France. robbinsh@iarc.fr.
2 International Agency for Research on Cancer, Lyon, France.
3 The Institute of Cancer Research, London, UK.
4 University of Cambridge, Cambridge, UK.
5 Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
6 University of Manchester, Manchester, UK.
7 Leeds Teaching Hospitals, Leeds, UK.
8 Nottingham University Hospitals and University of Nottingham, Nottingham, UK.
9 Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.