Division of Genetics and Epidemiology, The Institute of Cancer Research, London, United Kingdom. Department of Epidemiology, University of North Carolina Gillings School of Global Public Health, Chapel Hill. Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, North Carolina. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts. Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy. Department of Population Sciences, Beckman Research Institute of City of Hope, Duarte, California. Slone Epidemiology Center at Boston University, Boston, Massachusetts. Institut National de la Santé et de la Recherche Medicale U1018, Institut Gustave Roussy, Centre d'Etude des Supports de Publicité, Université Paris-Saclay, Université Paris-Sud, and Université Versailles Saint-Quentin, Paris, France. Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Tromsø. Department of Population Health and Perlmutter Cancer Center, New York University School of Medicine, New York City, New York. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland. Public Health Direction and Biodonostia Research Institute and Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Basque Regional Health Department, San Sebastian, Spain. Nutrition and Metabolism Section, International Agency for Research on Cancer, Lyon, France. Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts. Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, Victoria, Australia. Centre for Epidemiology and Biostatistics, School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia. Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst. Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany. Nuffield Department of Population Health, University of Oxford, Oxford, England. Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada. Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland. Health Services and Systems Research, Duke-NUS (National University of Singapore) Medical School, Singapore. Nutrional Epidemiology Unit, Karolinska Institutet, Institute of Environmental Medicine, Stockholm, Sweden. Cancer Risk Factors and Life-Style Epidemiology Unit, Cancer Research and Prevention Institute, Florence, Italy. School of Public Health, Imperial College, London, England. Department of Public Health, Section for Epidemiology, Aarhus University, Aarhus, Denmark. Radiation Effects Research Foundation, Hiroshima, Japan. University Medical Center, Utrecht University, Utrecht, the Netherlands. Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York. Department of Surgical and Perioperative Sciences, Umeå University, Umeå, Sweden. Hellenic Health Foundation, Athens, Greece. Cancer Registry of Norway, Institute of Population-Based Cancer Research, Oslo. Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway. Department of Preventive Medicine, University of Southern California, Los Angeles. Department of Public Health, Norwegian University of Science and Technology, Trondheim. Genetic Epidemiology Group, Folkhälsan Research Center, Faculty of Medicine, University of Helsinki, Helsinki, Finland. Department of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts. University of Pittsburgh Graduate School of Public Health and UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania. Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, North Carolina. Division of Breast Cancer Research, The Institute of Cancer Research, London, England.