1. Department of Preventive Medicine and Public Health, University of Santiago de Compostela, Santiago de Compostela, Spain
2. Health Research Institute of Santiago de Compostela (Instituto de Investigación Sanitaria de Santiago de Compostela), Santiago de Compostela, Spain
3. Department of Biomedical Sciences, Lebanese International University, Beirut, Lebanon
4. Public Health Research Group, University of Alicante, Alicante, Spain
5. Consortium for Biomedical Research in Epidemiology and Public Health (CIBER de Epidemiología y Salud Pública), Madrid, Spain