1. From the Unit of Nutrition Environment and Cancer, Cancer Epidemiology Research Programme, Catalan Institute of Oncology, Idibell, Barcelona, Spain (GB, AA, LL, PJ, and CAG); the National Institute for Public Health and the Environment, Bilthoven, Netherlands (HBB-d-M); the Molecular and Nutritional Epidemiology Unit, CSPO–Scientific Institute of Tuscany, Florence, Italy (DP); the German Institut