1. Department of Epidemiology, Murcia Regional Health Council, IMIB - Arrixaca, Murcia, Spain
2. CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
3. Department of Health and Social Sciences, University of Murcia, Murcia, Spain
4. Escuela Andaluza de Salud Pública. Instituto de Investigación Biosanitaria ibs.GRANADA. Hospitales Universitarios de Granada/Universidad de Granada, Granada, Spain
5. Public Health Division of Gipuzkoa, Instituto BIO-Donostia, Basque Government, Donostia-San Sebastián, Spain
6. Public Health Institute of Navarra, Pamplona, Spain
7. Research Group on Demography and Health, National Faculty of Public Health, University of Antioquia, Medellín, Colombia
8. Public Health Directorate, Oviedo, Spain
9. Unit of Nutrition, Environment and Cancer, Cancer Epidemiology Research Programme, Catalan Institute of Oncology, l’Hospitalet de Llobregat, Barcelona, Spain