Authors' Affiliations: Department of Public Health and Primary Care, University of Cambridge; Department of Public Health and Primary Care and Oncology, Centre for Cancer Genetic Epidemiology, University of Cambridge; Faculty of Health, Social Care & Education, Anglia Ruskin University, Cambridge; Division of Genetics and Epidemiology, Institute of Cancer Research, Sutton and Breakthrough Breast Cancer Research Centre, Institute of Cancer Research, London; School of Public Health, Imperial College London, London; and Cancer Epidemiology Unit, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, United Kingdom; Department of Biostatistics and Cancer Epidemiology, South Egypt Cancer Institute, Assiut, Egypt; Divisions of Psychosocial Research and Epidemiology and Molecular Pathology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam; Department for Health Evidence, Radboud University Medical Centre, Nijmegen; National Institute for Public Health and the Environment, Bilthoven; Department of Gastroenterology and Hepatology, University Medical Centre; Department of Epidemiology, Julius Center for Health Sciences and Primary Care, University Medical Center, Utrecht, the Netherlands; Genomic Medicine Group, Galician Foundation of Genomic Medicine, Complejo Hospitalario Universitario de Santiago, Servicio Galego de Saude (SERGAS), Instituto de Investigación Sanitaria de Santiago (IDIS), Santiago de Compostela; Oncology and Genetics Unit, University Hospital of Vigo, Galicia Health Service (SERGAS); Radiotherapy Department, University Hospital of Vigo, Vigo; Navarre Public Health Institute, Pamplona; Consortium for Biomedical Research in Epidemiology and Public Health (CIBER Epidemiología y Salud Pública-CIBERESP); Chief Unit of Nutrition, Environment and Cancer, Catalan Institute of Oncology (ICO), Barcelona; Andalusian School of Public Health, Granada; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid; Public Health D Organization uri icon