1. Unit of Medical Epidemiology, Department of Surgical Sciences Uppsala University Uppsala Sweden
2. MRC Cancer Unit University of Cambridge Cambridge UK
3. British Heart Foundation Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care University of Cambridge Cambridge UK
4. National Institute for Health Research Cambridge Biomedical Research Centre University of Cambridge and Cambridge University Hospitals Cambridge UK
5. MRC Integrative Epidemiology Unit, Bristol Medical School University of Bristol Bristol UK
6. Department of Public Health and Primary Care University of Cambridge Cambridge UK
7. MRC Biostatistics Unit University of Cambridge Cambridge UK
8. Unit of Cardiovascular and Nutritional Epidemiology Institute of Environmental Medicine, Karolinska Institutet Stockholm Sweden