1. Department of Nursing, Universitat de València, 46010 Valencia, Spain
2. Epidemiology and Environmental Health Joint Research Unit, FISABIO−Universitat Jaume I−Universitat de València, 46020 Valencia, Spain
3. Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), 28029 Madrid, Spain
4. Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, 46020 Valencia, Spain
5. Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, Universitat de València, 46010 Valencia, Spain
6. Health Policy Planning and Evaluation Service, Conselleria de Sanitat Universal i Salut Pública, Generalitat Valenciana, 46010 Valencia, Spain
7. Biodonostia Health Research Institute, 20014 San Sebastian, Spain
8. Department of Preventive Medicine and Public Health of the University of the Basque Country, UPV/EHU, 48940 Leioa, Spain
9. Faculty of Psychology, University of the Basque Country, UPV/EHU, 20018 San Sebastian, Spain
10. Department of Genetics, Physical Anthropology and Animal Physiology, Biocruces-Bizkaia Health Research Institute and University of the Basque Country (UPV/EHU), 48903 Leioa, Spain
11. Institute of Analytical Chemistry, Faculty of Chemistry, University of Vienna, Waehringer Strasse 38, Vienna 1090, Austria
12. Institute of Chemistry, University of Graz, 8010 Graz, Austria
13. Occupational and Environmental Medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg and Sahlgrenska University Hospital, 40530 Gothenburg, Sweden