International Agency for Research on Cancer (IARC-WHO), 150, Cours Albert Thomas, 69372, Lyon Cedex 08, France. freislingh@fellows.iarc.fr. International Agency for Research on Cancer (IARC-WHO), 150, Cours Albert Thomas, 69372, Lyon Cedex 08, France. Wits Reproductive Health and HIV Institute, University of the Witwatersrand, Johannesburg, South Africa. Section of Epidemiology, Department of Public Health, Aarhus University, Aarhus, Denmark. Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK. Centre for Research in Epidemiology and Population Health (CESP), Nutrition, Hormones and Women's Health Team, INSERM, Villejuif, France. Université Paris Sud, Villejuif, France. Institut Gustave Roussy, Villejuif, France. Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. Department of Epidemiology, German Institute of Human Nutrition, Potsdam-Rehbruecke, Nuthetal, Germany. Institute of Cancer Epidemiology, Danish Cancer Society, Copenhagen, Denmark. Public Health Directorate, Asturias, Spain. Unit of Nutrition and Cancer, Catalan Institute of Oncology (ICO-IDIBELL), Barcelona, Spain. Escuela Andaluza de Salud Pública, Instituto de Investigación Biosanitaria ibs, Hospitales Universitarios de Granada, Universidad de Granada, Granada, Spain. CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain. Public Helath Division of Gipuzkoa, Basque Health Department, BioDonostia Research Institute, San Sebastián, Spain. Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública-CIBERESP), Madrid, Spain. Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain. Navarre Public Health Institute, Pamplona, Spain. Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridge, UK. Medical Research Council Epidemiology Unit, Institute of Metabolic Science, University of Cambridge, Cambridge, UK. Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK. Instituto de Investigación Sanitaria de Palma (IdISPa), CIBER Fisiopatología de la Obesidad y Nutrición (CIBER-OBN), Madrid, Spain. Hellenic Health Foundation, Athens, Greece. Department of Hygiene, Epidemiology and Medical Statistics, University of Athens Medical School, Athens, Greece. Molecular and Nutritional Epidemiology Unit, Cancer Research and Prevention Institute, ISPO, Florence, Italy. Epidemiology and Prevention Unit, Department of Preventive and Predictive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy. Cancer Registry, Azienda Ospedaliera "Civile M.P. Arezzo", Ragusa, Italy. Unit of Cancer Epidemiology - CERMS, Department of Medical Sciences, University of Turin and Città della Salute e della Scienza Hospital, Turin, Italy. Department of Clinical and Experimental Medicine, Frederico II University, Naples, Italy. National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands. Department of Gastroenterology and Hepatology, University Medical Centre Utrecht, Utrecht, The Netherlands. Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. Department of Clinical Sciences, Lund University, Malmö, Sweden. Diabetes and Cardiovascular Disease, Genetic Epidemiology, Department of Clinical Sciences, Lund University, Malmö, Sweden. Department of Biobank Research, Umea University, Umeå, Sweden. Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Tromsö, Norway. Cancer Registry of Norway, Oslo, Norway. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. Department of Genetic Epidemiology, Folkhälsan Research Center, Helsinki, Finland. Department of Epidemiology, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.